As filed with the Securities and Exchange Commission on June 19, 2003
                                                  Registration No. 333-_______

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                   ----------

                                    FORM S-3
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                                   ----------

                              XYBERNAUT CORPORATION
                              ---------------------
             (Exact name of registrant as specified in its charter)

           Delaware                                          54-1799851
- -------------------------------                          -----------------
(State or other jurisdiction of                          (I.R.S. Employer
Incorporation or organization)                          Identification No.)

                             12701 Fair Lakes Circle
                             Fairfax, Virginia 22033
                                 (703) 631-6925
        -----------------------------------------------------------------
               (Address, including zip code, and telephone number,
        Including area code, of registrant's principal executive offices)

                                Edward G. Newman
                             12701 Fair Lakes Circle
                             Fairfax, Virginia 22033
                                 (703) 631-6925
        -----------------------------------------------------------------
            (Name, address, including zip code, and telephone number,
                   Including area code, of agent for service)

                                    Copy to:

                           Martin Eric Weisberg, Esq.
                      Jenkens & Gilchrist Parker Chapin LLP
                              The Chrysler Building
                              405 Lexington Avenue
                            New York, New York 10174
                                 (212) 704-6000

                                   ----------

     Approximate  date of  commencement  of proposed sale to public:  As soon as
practicable after the effective date of this Registration Statement.

     If the only securities on this Form are being offered  pursuant to dividend
or interest reinvestment plans, please check the following box. |_|

     If any of the securities being registered on this Form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. |X|

     If this Form is filed to  register  additional  securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. |_| __________

     If this Form is a  post-effective  amendment  filed pursuant to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. |_| __________

     If delivery of the  prospectus is expected to be made pursuant to Rule 434,
please check the following box. |_|






                                                CALCULATION OF REGISTRATION FEE
- ------------------------------------------------------------------------------------------------------------------------------
                                                                      Proposed                Proposed
        Title of Each Class                 Amount to be              Maximum                 Maximum             Amount of
   of Securities to be Registered           Registered(1)          Offering Price             Aggregate          Registration
                                                                     Per Share             Offering Price           Fee(7)
- ------------------------------------------------------------------------------------------------------------------------------
                                                                                                       
Common Stock, $.01 par value per share...   14,780,405(2)             $0.62(4)              $9,163,851.00         $  741.35
- ------------------------------------------------------------------------------------------------------------------------------
Common Stock, $.01 par value per share...    4,054,054(2)(3)          $2.25(5)              $9,121,621.50        $  737.93
- ------------------------------------------------------------------------------------------------------------------------------
Common Stock, $.01 par value per share...    3,281,250(2)(3)          $1.35(6)              $4,429,687.50        $  358.36
- ------------------------------------------------------------------------------------------------------------------------------
Total Registration Fee...................                                                                        $1,837.64
- ------------------------------------------------------------------------------------------------------------------------------


(1)      Represents the shares of common stock being registered for resale by
         the selling stockholders and the number of shares of common stock
         issuable upon exercise of warrants to purchase shares of our common
         stock by the selling stockholders.

(2)      Pursuant to Rule 416 of the  Securities  Act of 1933,  as amended  (the
         "Securities  Act"),  the shares of common  stock  offered  hereby  also
         include such presently  indeterminate  number of shares of common stock
         as shall be issued by us to the selling  stockholders  upon  adjustment
         under  anti-dilution  provisions  covering the  additional  issuance of
         shares by Xybernaut  resulting  from stock splits,  stock  dividends or
         similar transactions.

(3)      Represents the number of shares of common stock issuable upon exercise
         of warrants to purchase shares of our common stock.

(4)      Estimated solely for the purpose of calculating the registration fee
         pursuant to Rule 457(c) and (g) of the Securities Act; based on the
         average ($0.62) of the closing bid ($0.61) and asked ($0.63) price on
         the Nasdaq Small Cap Market on June 18, 2003.

(5)      Estimated solely for the purpose of calculating the registration fee
         pursuant to Rule 457(g) of the Securities Act, based on the higher of
         (a) the exercise price of the warrants or (b) the offering price of
         securities of the same class included in this registration statement.

(6)      Estimated solely for the purpose of calculating the registration fee
         pursuant to Rule 457(g) of the Securities Act, based on higher of (a)
         the exercise price of the warrants or (b) the offering price of
         securities of the same class included in this registration statement.

(7)      Calculated pursuant to Section 6(b) of the Securities Act based upon
         Proposed Maximum Aggregate Offering Price multiplied by .00008090.


THE REGISTRANT HEREBY AMENDS THIS  REGISTRATION  STATEMENT ON SUCH DATE OR DATES
AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT  SHALL FILE
A FURTHER AMENDMENT WHICH SPECIFICALLY  STATES THAT THIS REGISTRATION  STATEMENT
SHALL  THEREAFTER  BECOME  EFFECTIVE  IN  ACCORDANCE  WITH  SECTION  8(a) OF THE
SECURITIES  ACT OF  1933 OR  UNTIL  THIS  REGISTRATION  STATEMENT  SHALL  BECOME
EFFECTIVE ON SUCH DATE AS THE  COMMISSION,  ACTING PURSUANT TO SECTION 8(a), MAY
DETERMINE.




The information in this prospectus is not complete and may be changed. These
securities may not be sold until the registration statement filed with the
Securities and Exchange Commission is effective. This prospectus is not an offer
to sell nor is it seeking an offer to buy these securities in any state where
the offer or sale is not permitted.

                   SUBJECT TO COMPLETION, DATED JUNE 19, 2003

PROSPECTUS

                              XYBERNAUT CORPORATION

                        22,115,709 SHARES OF COMMON STOCK

         The selling stockholders of Xybernaut Corporation listed on page 10 of
this prospectus are offering for sale up to 22,115,709 shares of common stock of
Xybernaut under this prospectus.

         The selling stockholders may offer their shares through public or
private transactions, at prevailing market prices, or at privately negotiated
prices. See "Plan of Distribution".

                     --------------------------------------
                     NASDAQ Small Cap Market Symbol: "XYBR"
                     --------------------------------------

         On June 18, 2003, the closing price of one share of our common stock on
the NASDAQ Small Cap Market was $0.62.

         THIS INVESTMENT INVOLVES A HIGH DEGREE OF RISK. YOU SHOULD CAREFULLY
         CONSIDER THE FACTORS DESCRIBED UNDER THE CAPTION "RISK FACTORS"
         BEGINNING ON PAGE 2 OF THIS PROSPECTUS.

         NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
         COMMISSION HAS APPROVED OR DISAPPROVED THESE SECURITIES OR DETERMINED
         IF THIS PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE
         CONTRARY IS A CRIMINAL OFFENSE.

                The date of this prospectus is _________ __, 2003




                                  RISK FACTORS

         BEFORE YOU BUY SHARES OF OUR COMMON STOCK, YOU SHOULD BE AWARE THAT
THERE ARE VARIOUS RISKS ASSOCIATED WITH THAT PURCHASE, INCLUDING THOSE DESCRIBED
BELOW. YOU SHOULD CONSIDER CAREFULLY THESE RISK FACTORS, TOGETHER WITH ALL OF
THE OTHER INFORMATION IN THIS PROSPECTUS AND THE DOCUMENTS WE HAVE INCORPORATED
BY REFERENCE IN THE SECTION "WHERE YOU CAN FIND MORE INFORMATION ABOUT US,"
BEFORE YOU DECIDE TO PURCHASE SHARES OF OUR COMMON STOCK.

     -----------------------------------------------------------------------
     RISKS ASSOCIATED WITH OUR HISTORY OF LOSSES AND FUTURE NEED FOR CAPITAL
     -----------------------------------------------------------------------

WE HAVE A HISTORY OF LOSSES AND, IF WE DO NOT ACHIEVE PROFITABILITY, WE MAY NOT
BE ABLE TO CONTINUE OUR BUSINESS IN THE FUTURE.

         Our sales, marketing, research, development and general and
administrative expenses have resulted in significant losses and are expected to
continue to result in significant losses for the foreseeable future. We have
incurred the following losses since 1997:

             Fiscal years ended:

                     o  December 31, 1997             $(10,051,757)
                     o  December 31, 1998             $(13,001,338)
                     o  December 31, 1999             $(16,697,413)
                     o  December 31, 2000             $(24,185,222)
                     o  December 31, 2001             $(32,199,579)
                     o  December 31, 2002             $(26,580,833)

             Fiscal quarter  ended:
                      o  March 31, 2003               $ (5,378,478)

WE COULD BE REQUIRED TO CUT BACK OR STOP OPERATIONS IF WE ARE UNABLE TO REDUCE
CASH OPERATING EXPENSES AND OBTAIN NEEDED FINANCING.

         We have recorded net losses since our inception. These losses are
primarily attributable to the operating expenses incurred by us to design,
develop, market and sell our wearable computer products and to provide general
and administrative support for these operating activities. During these periods,
our revenues and gross margins have not been sufficient to fund these operating
activities. As a result, we have consistently recorded negative cash flows from
operating activities and net losses and had an accumulated deficit of
$136,401,637 at March 31, 2003.

         The combination of our operating losses and working capital
requirements has severely impacted our financial position and liquidity. At
March 31, 2003, we had unrestricted cash on hand of $3,998,342 and accounts
payable and accrued expenses totaling $4,661,465. Certain of these liabilities
are past their stated terms of payment, including those owed to vendors that
provide services and inventory that we require to execute our business plan. In
general, any company that does not pay its suppliers in a timely manner is at
risk of being forced into an involuntary bankruptcy proceeding instituted by
creditors, which may provide for the liquidation of assets or the reorganization


                                      -2-


of assets and debts. We generally believe that we have a reasonably good
relationship with most of our vendors and creditors. However certain of our
vendors have filed legal actions to recover overdue accounts payables and ceased
providing services and products to us. We do not believe that these actions will
have a material adverse effect on us however there can be no assurances that
other vendors will not pursue similar actions.

         During 2003, 2002 and 2001, we funded our operating and investing
activities through our financing activities, which consist primarily of private
placements of common stock, warrant and stock option exercises and borrowings.

         We have taken steps that we believe are necessary to improve our
operations and raise additional capital, both of which are needed to enhance our
ability to meet our cash flow needs through December 31, 2003 and thereafter.
Beginning in April 2002 and continuing through the date of this filing, we have
performed reviews of our operations and implemented various cost cutting
programs to significantly reduce our operating expenses. Assuming there are no
significant changes to our business plan, we expect to maintain savings of over
50% from annualized fourth quarter 2001 levels. During the fourth quarter of
2002 and first quarter of 2003, we met our initial target to reach a quarterly
operating expense level of between $4,000,000 and $5,000,000. Future significant
fluctuations may still occur as a result of non-recurring charges associated
with cost-saving initiatives as well as our research and development activities,
which will vary depending wearable/mobile computer product development cycles
during any given period.

         Subsequent to these changes, we believe that our staffing and resources
will be sufficient to carry out our business plan for the foreseeable future. In
addition to the cost cutting measures already undertaken, we continue to review
all aspects of our operations and may take additional actions to reduce
operating expenses further.

         Even if the above cost cutting initiatives are fully implemented and
maintained, we will still be required to obtain outside financing to supplement
our cash position, operations and inventory procurement. During the period from
January 1, 2003 through the date of this filing, we raised approximately
$12,000,000 in cash through sales of our common stock to institutional
investors, borrowings and warrant exercises, inclusive of the financings
included in this filing. Potential sources of additional financing include
private equity offerings, strategic investments, and various forms of debt
financing. We believe that the combination of cash on hand, cash flows from
operations, and outside funding will provide sufficient liquidity to meet our
ongoing cash requirements. This is based both on our historical ability to raise
capital and on debt and equity financings currently available to us. However,
there can be no assurance that we can or will obtain sufficient funds from
operations or from additional financings on terms acceptable to us. If we are
unable to obtain sufficient additional financing, we will be required to cut
back or stop operations.

WE MAY FACE DIFFICULTIES IN OBTAINING NEEDED FINANCINGS.

         The equity markets, especially for small capitalization technology
stocks, have remained depressed, and the U.S. and world economies have generally
been in a decline or recession. If a sustained decline in the general equity
markets, the price of our common stock, or the U.S. or world economy were to
occur, we could face difficulties in our ability to raise additional capital.

         We have historically made several private placements of our common
stock per year, primarily to a limited number of institutional investors who
specialize in making similar types of investments. If these institutional


                                      -3-


investors were to choose to not participate in future private placements, we
could face difficulties in our ability to raise additional capital.

         On July 22, 2002, we received notice from Nasdaq that our common stock
had closed below $1 per share for 30 consecutive trading days. Effective October
29, 2002, we were granted a transfer to the Nasdaq SmallCap(R) Market. Effective
January 22, 2003, we were provided an extension until July 17, 2003 for the
stock price to close above $1 for ten consecutive trading days. On January 30,
2003, Nasdaq issued a press release in which it "announced plans to extend a
pilot program governing bid price rules for all Nasdaq National Market(R) and
Nasdaq SmallCap issuers. The proposal will allow issuers that meet heightened
financial requirements to benefit from extended compliance periods for
satisfying minimum bid price requirements. The proposed rule changes would
[amongst other changes] extend the bid price grace period for SmallCap issuers
demonstrating compliance with the core SmallCap initial listing criteria from
180 to up to 540 days (approximately 18 months). Compliance with this standard
will be verified every 180 days. Nasdaq will present the overall plan to the
Securities and Exchange Commission for approval prior to implementing the
proposed changes." As an interim measure, the SEC has granted approval to a
Nasdaq proposal extending the bid grace period for an additional 90 days.

         We are currently in compliance with all such listing criteria and we
anticipate that we will remain in compliance in the future. However, there can
be no assurances that we will be able to remain in compliance in the future or
that the SEC will grant the Nasdaq the requisite approval to adopt this
proposal. Prior to the delisting of our common stock, we can appeal Nasdaq for
an extension or for other remedies. If necessary, we intend to fully exercise
all of our rights and options to maintain our listing. If we are unable to
remain on the SmallCap Market, we may be forced to trade on the Over the Counter
Bulletin Board or Pink Sheets markets, which would significantly reduce the
liquidity in our and interest of potential investors in purchasing our stock. We
also may face reductions in holdings by institutional holders whose charters may
not allow investment in companies that do not trade on the Nasdaq or other
national exchange.

             ------------------------------------------------------
             RISKS ASSOCIATED WITH THE INDUSTRY IN WHICH WE OPERATE
             ------------------------------------------------------

OUR FUTURE REVENUES AND ABILITY TO PRODUCE NEW PRODUCTS DEPEND SUBSTANTIALLY ON
THE SUCCESS OF THE MOBILE ASSISTANT(R) AND ATIGO(TM) SERIES.

         The Mobile Assistant and Atigo series are our principal products and
our success will depend to a large extent upon their commercial acceptance,
which cannot be assured. Additional product development will result in
significant research and development expenses that may be unrecoverable should
commercialization of new products prove unsuccessful. We also could require a
higher level of funding if research and development or sales and marketing
expenses are greater than we anticipate. As with most high technology products,
new models must be introduced periodically for us to remain competitive. There
can be no assurance that these new models can be successfully developed or
marketed or will be commercially accepted.

WE HAVE SIGNIFICANT COMMITMENTS TO PURCHASE INVENTORY AND SERVICES IN THE
FUTURE.

         We have commitments to purchase inventory, tooling and engineering and
other services from our suppliers and manufacturers related to our current and
future hardware product lines. We expect that we will enter into similar
commitments in the future as we design, develop and procure future wearable
computer product lines.



                                      -4-


         In March 2003, we entered into an agreement with IBM under which we
were released of our prior obligation to pay a penalty or procure inventory
other than $4,910,000 in MA V computing units, flat panel displays, peripherals
and component parts. The final pricing provided to us represents a discount from
the original contractual prices. Under the March 2003 agreement, IBM will ship
inventory monthly from March 2003 through December 2003 and we will remit
payments monthly from March 2003 through January 2004.

         In addition to the obligation to IBM related to the MA V described
above, we have commitments to purchase computing units, flat panel and head
mounted displays, miscellaneous computing components as well as engineering and
other services from our various vendors related to the MA V, MA TC, Atigo and
future product lines. We believe that, if necessary, the timing and amount of
many of these shipments, services and payments may be adjusted through the
payment of cancellation fees, contract negotiations or the satisfaction of
obligations through the issuance of our equity securities. However, there can be
no assurance that we can successfully modify these contracts or commitments.

         Excluding the potential impact of contract modifications, we estimate
that we will make total payments of approximately $6,000,000 during the period
from April through December 2003 related to current inventory commitments, which
amount includes the commitment to purchase the additional MA V products from IBM
on a monthly basis during 2003 as described above. We expect that we will enter
into similar inventory and engineering commitments in the future as we design,
develop and procure future wearable computer product lines.

WE MAY HAVE TO LOWER PRICES OR SPEND MORE MONEY TO EFFECTIVELY COMPETE AGAINST
COMPANIES WITH GREATER RESOURCES THAN US, WHICH COULD RESULT IN LOWER REVENUES
AND/OR PROFITS.

         The success of our products in the marketplace depends on many factors,
including product performance, price, ease of use, support of industry
standards, competing technologies and customer support and service. Given these
factors we cannot assure you that we will be able to compete successfully. For
example, if our competitors offer lower prices, we could be forced to lower
prices which could result in reduced or negative margins and a decrease in
revenues. If we do not lower prices we could lose sales and market share. In
either case, if we are unable to compete against our main competitors which
include established companies like CDI, ViA Inc., Texas Microsystems, Symbol,
Raytheon, Panasonic and others, we would not be able to generate sufficient
revenues to grow our company or reverse our history of losses.

         In addition, we may have to spend more money to effectively compete for
market share, including funds to expand our infrastructure, which is a capital
and time intensive process. Further, if other companies choose to aggressively
compete against us, we may have to reduce our prices and spend more money on
advertising, promotion, trade shows, product development, marketing and overhead
expenses, hiring and retaining personnel, and developing new technologies. These
lower prices and higher expenses would adversely affect our operations and cash
flows.



                                      -5-


CURRENCY FLUCTUATIONS, ESPECIALLY IN THE JAPANESE YEN AND EUROPEAN EURO, MAY
SIGNIFICANTLY INCREASE OUR EXPENSES AND AFFECT OUR RESULTS OF OPERATIONS.

         The exchange rates for some local currencies in countries where we
operate may fluctuate in relation to the U.S. dollar. Such fluctuations may have
an adverse effect on our competitive position as well as our expenses, revenues,
earnings, assets or liabilities when local currencies are translated into U.S.
dollars. We have significant operations in Asia, in particular Japan, and
Europe, in particular Germany. Also, we are party to supplier arrangements with
several companies in Asia and Europe for the production of the Mobile Assistant
series. Our foreign operations, including payments to our suppliers, are
typically funded in the local currencies. Any changes in the value of the U.S.
dollar against these currencies could result in an increase in our reported
expenses or inventory costs or a decrease in our reported revenues which, if
substantial, could have a material adverse effect on our financial condition and
results of operations.

IF OUR SALES AND RECEIVABLES CONTINUE TO BE CONCENTRATED AMONG A SMALL NUMBER OF
OUR CUSTOMERS, THE LOSS OF A CUSTOMER, A SUBSTANTIAL DECREASE OF SALES TO ONE OF
OUR CUSTOMERS OR A CUSTOMER'S INABILITY TO PAY AMOUNTS OWED TO US MAY HAVE A
MATERIAL ADVERSE EFFECT ON OUR SALES, OPERATING RESULTS AND CASH FLOWS.

         A significant percentage of our sales has been concentrated among a
relatively small number of customers. For the fiscal quarter ended March 31,
2003, we had two (2) customers which each comprised more than 10% of our total
revenues, representing 25% of total revenues. Additionally, at March 31, 2003,
we had one (1) customer which comprised more than 10% of our total accounts
receivable, representing an aggregate of 48% of total accounts receivable. There
can be no assurance that this concentration of sales and receivables among
customers will not continue in the future. The loss of a significant customer or
a substantial decrease in sales to such a customer would have a material adverse
effect on our sales and operating results. Our arrangements with certain of our
customers, especially those related to the sale of our wearable computer
hardware products, are based on the receipt of purchase orders and otherwise are
not subject to long-term written contracts and generally may be terminated upon
short notice. In addition, these and other customers may demand price
concessions from us that could adversely affect profit margins. Also, our cash
flows may be adversely affected if a customer is unable or unwilling to repay
amounts owed to us.

                      ------------------------------------
                              RISK ASSOCIATED WITH
                      OUR INTERNAL OPERATIONS AND POLICIES
                      ------------------------------------

SINCE WE DO NOT INTEND TO DECLARE DIVIDENDS IN THE FORESEEABLE FUTURE, THE
RETURN ON YOUR INVESTMENT WILL DEPEND UPON APPRECIATION OF THE MARKET PRICE OF
YOUR SHARES.

         We have never paid any dividends on our common stock. Our board of
directors does not intend to declare any dividends in the foreseeable future,
but intends to retain all earnings, if any, for use in our business operations.
As a result, the return on your investment in us will depend upon any
appreciation in the market price of our common stock. The holders of common
stock are entitled to receive dividends when, as and if declared by the board of
directors out of funds legally available for dividend payments. The payment of
dividends, if any, in the future is within the discretion of our board of
directors and will depend upon our earnings, capital requirements and financial
condition, and other relevant factors.



                                      -6-


               --------------------------------------------------
               RISKS WHICH MAY DILUTE THE VALUE OF YOUR XYBERNAUT
                SHARES OR LIMIT THE EFFECT OF THEIR VOTING POWER
               --------------------------------------------------

THE PRICE OF OUR COMMON STOCK IS HIGHLY VOLATILE.

         The price of our common stock is highly volatile. During the period
from January 1, 2000 to June 18, 2003 the price of our common stock has ranged
from a high of $29.97 to a low of $0.19. Following periods of volatility in the
market price of a company's securities, securities class action litigation has
often been instituted against such a company. If similar litigation were
instituted against us, it could result in substantial costs and a diversion of
our management's attention and resources, which could have an adverse effect on
our business. The volatile fluctuations of the market price are based on (1) the
number of shares in the market at the time as well as the number of shares we
may be required to issue in the future, compared to the market demand for our
shares; (2) our performance and meeting expectations of our performance,
including the development and commercialization of our products and proposed
products; (3) market conditions for technology companies in the small
capitalization sector; and (4) general economic and market conditions.

OUR EXECUTIVE OFFICERS, DIRECTORS AND PRINCIPAL STOCKHOLDERS, TOGETHER, MAY
EXERCISE CONTROL OVER ALL MATTERS SUBMITTED TO A VOTE OF STOCKHOLDERS.

         As of April 24, 2003, our executive officers, directors and principal
stockholders beneficially owned, in the aggregate, approximately 4% of our
outstanding shares of common stock. These stockholders, if acting together, may
be able to effectively control most matters requiring approval by our
stockholders. The voting power of these stockholders under certain circumstances
could have the effect of delaying or preventing a change in control of
Xybernaut.

WE HAVE RECENTLY ISSUED A SIGNIFICANT AMOUNT OF OUR COMMON STOCK.

         During the period from January 1, 2002 through June 18, 2003, we raised
approximately $32,000,000 in cash through sales of our common stock to
institutional investors and through warrant and stock option exercises. As a
result of our financings and other activities, 92,053,305 shares of common stock
were issued during this period, which number includes 14,780,405 shares of
common stock issued and included on this prospectus. This represents a 155%
increase in the number of shares outstanding as compared to the number of shares
outstanding as of January 1, 2002.

WE HAVE 21,761,373 SHARES OF OUR COMMON STOCK RESERVED FOR FUTURE ISSUANCES
WHICH CAN SUBSTANTIALLY DILUTE THE VALUE OF YOUR XYBERNAUT COMMON STOCK.

         The issuance of reserved shares would dilute the equity interest of
existing stockholders and could have a significant adverse effect on the market
price of our common stock. As of June 18, 2003 we had 21,761,373 shares of
common stock reserved for possible future issuances upon conversion of options
and warrants, which number includes 7,335,304 shares of common stock reserved in
connection with shares underlying warrants included on this prospectus. These
options and warrants are convertible into or exercisable for shares of common
stock at prices that may represent discounts from future market prices of the


                                      -7-


common stock. The exercise of these options or warrants could result in
substantial dilution to existing holders of common stock. The sale of the common
stock acquired at a discount could have a negative impact on the trading price
of the common stock and could increase the volatility in the trading price of
the common stock. See the section entitled "Dilution" for a summary of the
number of shares which could be issued upon conversion of the outstanding
preferred stock at various market prices.

         In addition, we may seek additional financing which may result in the
issuance of additional shares of our capital stock and/or rights to acquire
additional shares of our capital stock. Those additional issuances of capital
would result in a reduction of your percentage interest in Xybernaut.

ANTI-TAKEOVER MEASURES IN OUR CERTIFICATE OF INCORPORATION COULD ADVERSELY
AFFECT THE VOTING POWER OF THE HOLDERS OF THE COMMON STOCK.

         Our certificate of incorporation authorizes anti-takeover measures such
as the authority to issue "blank check" preferred stock and the staggered terms
of the members of our board of directors. Those measures could have the effect
of delaying, deterring or preventing a change in control without any action by
our stockholders. In addition, issuance of preferred stock, without stockholder
approval, on those terms as the board of directors may determine, could
adversely affect the voting power of the holders of the common stock, including
the loss of voting control to others.

                INFORMATION REGARDING FORWARD-LOOKING STATEMENTS

         This prospectus contains certain forward-looking statements which
involve substantial risks and uncertainties. These forward-looking statements
can generally be identified because the context of the statement includes words
such as "may," "will," "except," "anticipate," "intend," "estimate," "continue,"
"believe," or other similar words. Similarly, statements that describe our
future plans, objectives and goals are also forward-looking statements. Our
factual results, performance or achievements could differ materially from those
expressed or implied in these forward-looking statements as a result of certain
factors, including those listed in "Risk Factors" and elsewhere in this
prospectus.

                  WHERE YOU CAN FIND MORE INFORMATION ABOUT US

         We file annual, quarterly and special reports, proxy statements and
other information with the Securities and Exchange Commission (the "SEC"). You
may read and copy any document we file at the SEC's public reference rooms in
Washington, D.C., New York, New York and Chicago, Illinois. Please call the SEC
at 1-800-SEC-0330 for further information on the public reference rooms. Our SEC
filings are also available to the public over the Internet at the SEC's Website
at "http://www.sec.gov."

         We have filed with the SEC a registration statement on Form S-3 to
register the shares being offered. This prospectus is part of that registration
statement and, as permitted by the SEC's rules, does not contain all the
information included in the registration statement. For further information with
respect to us and our common stock, you should refer to the registration
statement and to the exhibits and schedules filed as part of the registration
statement, as well as the documents discussed below.



                                      -8-


         The SEC allows us to "incorporate by reference" the information we file
with them, which means that we can disclose important information to you by
referring you to those documents. The information incorporated by reference is
an important part of this prospectus, and information that we file later with
the SEC will automatically update or supersede this information.

         This prospectus may contain summaries of contracts or other documents.
Because they are summaries, they will not contain all of the information that
may be important to you. If you would like complete information about a contract
or other document, you should read the copy filed as an exhibit to the
registration statement or incorporated in the registration statement by
reference.

         We incorporate by reference the documents listed below and any future
filings we will make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of
the Securities Exchange Act of 1934 (File No. 0-19041) until all of the shares
are sold:

         o        Quarterly Report on Form 10-Q for the fiscal quarter ended
                  March 31, 2003 filed with the SEC on May 15, 2003;

         o        Annual Report on Form 10-K/A for the fiscal year ended
                  December 31, 2002 filed with the SEC on April 30, 2003;

         o        Annual Report on Form 10-K for the fiscal year ended December
                  31, 2002 filed with the SEC on March 28, 2003; and

         o        The description of our common stock contained in the
                  registration statement on Form 8-A filed on July 15, 1996
                  under the Exchange Act (File No. 0-15086), including all
                  amendments or reports filed for the purpose of updating that
                  description.

         You may request a copy of these filings, at no cost, by writing to us
at 12701 Fair Lakes Circle, Suite 550, Fairfax, Virginia 22033, (703) 631-6925,
Attention: Thomas D. Davis or by e-mail at investorrelations@xybernaut.com.

         You can review and copy the registration statement, its exhibits and
schedules, as well as the documents listed below, at the public reference
facilities maintained by the SEC as described above. The registration statement,
including its exhibits and schedules, are also available on the SEC's web site.

                                 USE OF PROCEEDS

         The selling stockholders are selling all of the shares covered by this
prospectus for their own accounts. Accordingly, we will not receive any proceeds
from the resale of the shares.

         We will receive proceeds, if any, from the exercise of warrants. We
will use those proceeds, if any, for working capital and general corporate
purposes.

         We will bear the expenses relating to this registration, other than
discounts and commissions, which will be paid by the selling stockholders.



                                      -9-


                                    DILUTION

         As of June 18, 2003 we had issued and outstanding 151,581,418 shares of
common stock. At that date, there were an additional 21,761,373 shares of common
stock reserved for possible future issuances as follows:

         o        options to purchase 6,609,428 shares at an exercise price
                  between $0.24 and $23.38 per share. We have registered the
                  shares issuable upon exercise of the options under the
                  Securities Act;

         o        warrants to purchase 11,785,840 shares at a price between
                  $0.50 and $5.00 per share. Of the 11,785,840 shares, we have
                  previously registered a total of 4,330,536 shares issuable
                  upon exercise of these warrants. This prospectus covers an
                  additional 7,335,304 shares of common stock issuable upon
                  exercise of warrants, which shares will be freely tradable
                  without restriction (subject to prospectus delivery
                  requirements) on the effective date of the registration
                  statement. The remaining 120,000 shares will be deemed to be
                  "restricted securities" when issued; and

         o        3,366,105 shares issuable upon exercise of options under the
                  Company's stock incentive plans which have not been granted as
                  of June 11, 2003. We have registered the shares issuable upon
                  exercise of the options.

         The shares which will be deemed "restricted securities" may be sold
under Rule 144. Rule 144 permits sales of "restricted securities" by any person,
whether or not an affiliate of the issuer, after a one year holding period. At
that time, sales can be made subject to the Rule's volume and other limitations
and after two years by non-affiliates without adhering to Rule 144's volume or
other limitations. In general, an "affiliate" is a person with the power to
manage and direct our policies. The SEC has stated that, generally, executive
officers and directors of an entity are deemed affiliates of the issuing entity.

                              SELLING STOCKHOLDERS

         This prospectus covers the resale by the selling stockholders of up to
22,115,709 shares of our common stock.

         The natural person holding voting and/or dispositive control over the
shares owned by Capecove International Ltd. is Mr. Neil Smollett. The address of
Capecove International Ltd. is 2 Hanevieim St., Ramat Hashron, Israel.

         The natural person holding voting and/or dispositive control over the
shares owned by London Properties Ltd. is Mr. Shai Granot. The address of London
Properties Ltd. is Haoranim 50 Ramat Efal, Israel.

         The natural person holding voting and/or dispositive control over the
shares owned by Sussex Consulting Ltd. is Mr. Michael Raviv. The address of
Sussex Consulting Ltd. is 26 Imrie Bina Street, Jerusalem, Israel.

         The following table lists the selling stockholders and certain
information regarding the ownership by such selling stockholders of shares of
our common stock as of June 18, 2003, and as adjusted to reflect the sale of the
shares. Information concerning the selling stockholders, their pledgees, donees


                                      -10-


and other non-sale transferees who may become selling stockholders may change
from time to time. To the extent the selling stockholders or any of their
representatives advise us of such changes, we will report those changes in a
prospectus supplement to the extent required. See "Plan of Distribution."

         The registration of the following shares through this registration
statement allows the selling stockholders to sell their share holdings in the
future on the open market and is not necessarily an indication of intent to sell
the shares.




                                                                                                       ---------------------
                                                                                                         Shares of Common
                                                                  Percentage                                Stock Owned
                                                                  of Common                               After Offering
                                           Shares of Common      Stock Owned         Shares of                (2)(3)
                                          Stock Owned Prior      Prior to the      Common Stock        ---------------------
                                            to Offering (1)        Offering        to be Sold(2)         Number    Percent
                                        ------------------------------------------------------------------------------------
                                                                                                       
Capecove International Ltd.                  9,459,459 (4)           6.1%           9,459,459 (4)          0          0%
London Properties Ltd.                       6,328,125 (5)           4.1%           6,328,125 (5)          0          0%
Sussex Consulting Ltd.                       6,328,125 (5)           4.1%           6,328,125 (5)          0          0%


- --------------
(1)      Includes shares of common stock and warrants to purchase shares of
         common stock included on this registration statement.
(2)      Assumes that the selling stockholders will exercise all of their
         warrants into shares of common stock.
(3)      Assumes all of the securities offered hereby will be sold by the
         selling stockholders.
(4)      Includes 4,054,054 shares of common stock issuable upon exercise of
         warrants.
(5)      Includes 1,640,625 shares of common stock issuable upon exercise of
         warrants.

         The common stock has the material rights and obligations discussed
below and under the section entitled "Description of Securities." We have filed
the agreements relating to these rights and obligations with the SEC. We urge
you to read them in their entirety.

         Capecove International Ltd. acquired its shares of common stock in a
private placement transaction entered into on June 4, 2003. Under the terms of
the common stock and warrant purchase agreement between Capecove International
Ltd. and us, we agreed to sell 5,405,405 shares of our common stock at a price
of $0.37 per share, representing an approximate 10% discount to the closing
price of our common stock for the ten (10) trading days immediately prior to the
date of the agreement, for gross proceeds of $2,000,000. We also issued warrants
to purchase 4,054,054 shares of our common stock exercisable at the following
exercise prices: (i) if exercised at any time from the date of issuance of the
warrants through June 4, 2004, the exercise price shall be equal to market price
of the common stock on the date the transaction was entered into, (ii) if
exercised at any time from June 5, 2004 through and including June 4, 2005, the
exercise price shall be equal to 200% of the market price of the common stock on
the date the transaction was entered into, and (iii) if exercised at any time
from June 5, 2005 through and including June 4, 2006, the exercise price shall
be equal to 300% of the market price of the common stock on the date the
transaction was entered into. These warrants are exercisable for a period of 3
years from the date of issuance. We may call up to 100% of the these warrants if
our common stock price is equal to or greater than $2.50 per share for 5


                                      -11-


consecutive trading days prior to the date that we call the warrants. In
connection with our sale of common stock pursuant to the common stock and
warrant purchase agreement, we entered into a registration rights agreement
pursuant to which, among other things, we agreed to use our best efforts to file
a registration statement to register for resale the shares of common stock,
including the shares of common stock issuable upon exercise of the warrants, no
later than 30 days after the closing date and cause such registration statement
to become effective as promptly as practicable after filing but no later than
September 2, 2003.

         London Properties Ltd. acquired its shares of common stock in a private
placement transaction entered into on May 30, 2003. Under the terms of the
common stock and warrant purchase agreement between London Properties Ltd. and
us, we agreed to sell 4,687,500 shares of our common stock at a price of $0.32
per share, representing an approximate 20% discount to the closing price of our
common stock for the ten (10) trading days immediately prior to the date of the
agreement, for gross proceeds of $1,500,000. We also issued warrants to purchase
1,640,625 shares of our common stock at the following exercise prices: (i) if
exercised at any time from the date of issuance of the warrants through May 30,
2004, the exercise price shall be equal to the market price of the common stock
on the date the transaction was entered into, (ii) if exercised at any time from
May 31, 2004 through and including May 30, 2005, the exercise price shall be
equal to 200% of the market price of the common stock on the date the
transaction was entered into, and (iii) if exercised at any time from May 31,
2005 through and including May 30, 2006, the exercise price shall be equal to
300% of the market price of the common stock on the date the transaction was
entered into. These warrants are exercisable for a period of 3 years from the
date of issuance. We may call up to 100% of the these warrants if our common
stock price is equal to or greater than $2.50 per share for 5 consecutive
trading days prior to the date that we call the warrants. In connection with our
sale of common stock pursuant to the common stock and warrant purchase
agreement, we entered into a registration rights agreement pursuant to which,
among other things, we agreed to use our best efforts to file a registration
statement to register for resale the shares of common stock, including the
shares of common stock issuable upon exercise of the warrants, no later than 30
days after the closing date and cause such registration statement to become
effective as promptly as practicable after filing but no later than August 28,
2003.

         Sussex Consulting Ltd. acquired its shares of common stock in a private
placement transaction entered into on May 30, 2003. Under the terms of the
common stock and warrant purchase agreement between Sussex Consulting Ltd. and
us, we agreed to sell 4,687,500 shares of our common stock at a price of $0.32
per share, representing an approximate 20% discount to the closing price of our
common stock for the ten (10) trading days immediately prior to the date of the
agreement, for gross proceeds of $1,500,000. We also issued warrants to purchase
1,640,625 shares of our common stock at the following exercise prices: (i) if
exercised at any time from the date of issuance of the warrants through May 30,
2004, the exercise price shall be equal to the market price of the common stock
on the date the transaction was entered into, (ii) if exercised at any time from
May 31, 2004 through and including May 30, 2005, the exercise price shall be
equal to 200% of the market price of the common stock on the date the
transaction was entered into, and (iii) if exercised at any time from May 31,
2005 through and including May 30, 2006, the exercise price shall be equal to
300% of the market price of the common stock on the date the transaction was
entered into. These warrants are exercisable for a period of 3 years from the
date of issuance. We may call up to 100% of the these warrants if our common
stock price is equal to or greater than $2.50 per share for 5 consecutive
trading days prior to the date that we call the warrants. In connection with our
sale of common stock pursuant to the common stock and warrant purchase
agreement, we entered into a registration rights agreement pursuant to which,
among other things, we agreed to use our best efforts to file a registration
statement to register for resale the shares of common stock, including the


                                      -12-


shares of common stock issuable upon exercise of the warrants, no later than 30
days after the closing date and cause such registration statement to become
effective as promptly as practicable after filing but no later than August 28,
2003.

         All of the warrants have adjustment provisions for dilution events
including stock splits, stock dividends and similar transactions.

         Other than the transactions disclosed above pursuant to which the
selling stockholders received the securities being registered for resale on this
prospectus, the selling stockholders are not affiliated with us and have not had
any material relationship with us or our affiliates during the past three years.

                            DESCRIPTION OF SECURITIES

GENERAL

         Our authorized capital stock consists of 200,000,000 shares of common
stock, par value $0.01 per share, and 6,000,000 shares of preferred stock, par
value $0.01 per share. As of June 18, 2003, we have 151,581,418 shares of common
stock issued and outstanding. We have reserved 21,761,373 shares of common stock
for issuance upon exercise of options and warrants.

COMMON STOCK

Voting

         The holders of our common stock are entitled to one vote for each share
held of record on all matters submitted to a vote of stockholders. Our
certificate of incorporation and by-laws do not provide for cumulative voting
rights in the election of directors. Accordingly, holders of a majority of the
shares of common stock entitled to vote in any election of directors may elect
all of the directors standing for election.

Dividends

         Holders of common stock are entitled to receive ratably those dividends
as may be declared by our board of directors out of funds legally available for
that purpose.

Rights on Liquidation

         In the event of our liquidation, dissolution or winding up, holders of
common stock are entitled to share ratably in the assets remaining after payment
of liabilities.

Pre-emptive or Redemption Rights

         Holders of common stock have no preemptive, conversion or redemption
rights. All of the outstanding shares of common stock are fully-paid and
nonassessable.



                                      -13-


PREFERRED STOCK

         Our board of directors has the authority to issue up to 6,000,000
shares of preferred stock from time to time in one or more series. Our board has
the authority to establish the number of shares to be included in each series,
and to fix the designations, powers, preferences and rights of the shares of
each series and the applicable qualifications, limitations or restrictions. The
issuance of preferred stock may have the effect of delaying or preventing a
change in control. The issuance of preferred stock could decrease the amount of
earnings and assets available for distribution to the holders of common stock,
if any, or could adversely affect the rights and powers, including voting
rights, of the holders of the common stock. In certain circumstances, the
issuances could have the effect of decreasing the market price of the common
stock.

         As of the date of this prospectus, we have not designated any shares of
preferred stock other than the series A, B, C, D and E preferred stock, all of
which have been fully converted into common stock.

ANTI-TAKEOVER CONSIDERATIONS

         Our certificate of incorporation authorizes the issuance of up to
6,000,000 shares of $0.01 par value preferred stock. The issuance of preferred
stock with such rights could have the effect of limiting stockholder
participation in certain transactions such as mergers or tender offers and could
discourage or prevent a change in our management. We have no present intention
to issue any additional preferred stock.

         We have a classified or staggered board of directors which limits an
outsider's ability to effect a rapid change of control of our board. In
addition, at the 1998 Annual Meeting of Stockholders held on September 24, 1998,
our stockholders approved measures to amend our certificate of incorporation and
by-laws, where applicable, to:

         o        implement an advance notice procedure for the submission of
                  director nominations and other business to be considered at
                  annual meetings of stockholders;

         o        permit only the President, the Vice Chairman of our board, the
                  Secretary or our board of directors to call special meetings
                  of stockholders and to limit the business permitted to be
                  conducted at such meetings to be brought before the meetings
                  by or at the direction of our board;

         o        provide that a member of our board of directors may only be
                  removed for cause by an affirmative vote of holders of at
                  least 66 2/3% of the voting power of the then outstanding
                  shares entitled to vote generally in the election of directors
                  voting together as a single class;

         o        fix the size of our board of directors at a maximum of twelve
                  directors, with the authorized number of directors set at ten,
                  and our board of directors having the sole power and authority
                  to increase or decrease the number of directors acting by an
                  affirmative vote of at least a majority of the total number of
                  authorized directors most recently fixed by our board of
                  directors;

         o        provide that any vacancy on the board may be filled for the
                  unexpired term (or for a new term in the case of an increase
                  in the size of the board) only by an affirmative vote of at
                  least a majority of the remaining directors then in office
                  even if less than a quorum, or by the sole remaining director;



                                      -14-


         o        eliminate stockholder action by written consent;

         o        require the approval of holders of 80% of the then outstanding
                  voting stock and/or the approval of 66 2/3% of the directors
                  for certain corporate transactions; and

         o        require an affirmative vote of 66 2/3% of the voting stock in
                  order to amend or repeal any adopted amendments to the
                  certificate of incorporation and bylaws adopted at the
                  meeting.

         Those measures combined with the ability of our board of directors to
issue "blank check" preferred stock and the staggered terms of the members of
our board of directors, could have the effect of delaying, deterring or
preventing a change in control without any further action by the stockholders.
In addition, the issuance of preferred stock, without stockholder approval, on
such terms as our board may determine, could adversely affect the voting power
of the holders of the common stock, including the loss of voting control to
others.

TRANSFER AGENT AND REGISTRAR

         Continental Stock Transfer & Trust Company is our Transfer Agent and
Registrar for our common stock.

                              PLAN OF DISTRIBUTION

         The selling stockholders and their pledgees, donees, transferees and
other subsequent owners, may offer their shares at various times in one or more
of the following transactions:

         o        on any U.S. securities exchange on which our common stock may
                  be listed at the time of sale;
         o        in the over-the-counter market;
         o        in privately negotiated transactions;
         o        in connection with short sales; or
         o        in a combination of any of the above transactions.

         The selling stockholders may offer their shares of common stock at
prevailing market prices at the time of sale, at prices related to those
prevailing market prices, at negotiated prices or at fixed prices.

         The selling stockholders may also sell the shares under Rule 144
instead of under this prospectus, if Rule 144 is available for those sales.

         The transactions in the shares covered by this prospectus may be
effected by one or more of the following methods:

         o        ordinary brokerage transactions and transactions in which the
                  broker solicits purchasers;
         o        purchases by a broker or dealer as principal, and the resale
                  by that broker or dealer for its account under this
                  prospectus, including resale to another broker or dealer;



                                      -15-


         o        block trades in which the broker or dealer will attempt to
                  sell the shares as agent but may position and resell a portion
                  of the block as principal in order to facilitate the
                  transaction; or
         o        negotiated transactions between the selling stockholders and
                  purchasers without a broker or dealer.

         The selling stockholders and any broker-dealers or other persons acting
on the behalf of parties that participate in the distribution of the shares may
be deemed to be underwriters. Any commissions or profits they receive on the
resale of the shares may be deemed to be underwriting discounts and commissions
under the Securities Act.

         As of the date of this prospectus, we are not aware of any agreement,
arrangement or understanding between any broker or dealer and the selling
stockholders with respect to the offer or sale of the shares under this
prospectus.

         We have advised the selling stockholders that during the time they are
engaged in distributing shares covered by this prospectus, they must comply with
the requirements of the Securities Act and Rule 10b-5 and Regulation M under the
Exchange Act. Under those rules and regulations, they:

         o        may not engage in any stabilization activity in connection
                  with our securities;
         o        must furnish each broker which offers common stock covered by
                  this prospectus with the number of copies of this prospectus
                  which are required by each broker; and
         o        may not bid for or purchase any of our securities or attempt
                  to induce any person to purchase any of our securities other
                  than as permitted under the Exchange Act.

                 INDEMNIFICATION FOR SECURITIES ACT LIABILITIES

         Section 145 of the Delaware General Corporation Law allows a company to
indemnify its directors and officers against expenses, judgments, fines and
amounts paid in settlement under the conditions and limitations described in the
law. Our certificate of incorporation authorizes us to indemnify our officers,
directors and other agents to the fullest extent permitted under Delaware law.

         Our certificate of incorporation provides that a director is not
personally liable for monetary damages to us or our stockholders for breach of
his or her fiduciary duties as a director. A director will be held liable for a
breach of his or her duty of loyalty to us or our stockholders, his or her
intentional misconduct or willful violation of law, actions or inactions not in
good faith, an unlawful stock purchase or payment of a dividend under Delaware
law, or transactions from which the director derives an improper personal
benefit. This limitation of liability does not affect the availability of
equitable remedies against the director including injunctive relief or
rescission.

         We have purchased a directors and officers liability and reimbursement
insurance policy that covers liabilities of our directors and officers arising
out of claims based upon acts or omissions in their capacities as directors and
officers.

         Insofar as indemnification for liabilities arising under the Securities
Act may be permitted to our directors, officers and controlling persons pursuant
to the foregoing provisions, or otherwise, we have been advised that in the
opinion of the SEC such indemnification is against public policy as expressed in
the Securities Act and is, therefore, unenforceable.



                                      -16-


                                  LEGAL MATTERS

         Jenkens & Gilchrist Parker Chapin LLP, New York, New York, a
stockholder of our company, will pass upon the validity of the securities
offered hereby. Martin Eric Weisberg, Esq., a member of the firm, is our
Secretary, one of our Directors, and a stockholder in our company.

                                     EXPERTS

         The financial statements incorporated in this prospectus by reference
to the Annual Report on Form 10-K and Form 10-K/A for the year ended December
31, 2002, have been so incorporated in reliance on the report of Grant Thornton
LLP, independent certified public accountants, given on the authority of said
firm as experts in auditing and accounting.



                                      -17-





==============================================     ==============================================

                                                           
WE HAVE NOT AUTHORIZED ANY DEALER, SALESPERSON
OR ANY OTHER PERSON TO GIVE ANY INFORMATION OR
TO REPRESENT ANYTHING OTHER THAN THOSE
CONTAINED IN THIS PROSPECTUS IN CONNECTION WITH
THE OFFER CONTAINED HEREIN, AND, IF GIVEN OR
MADE, YOU SHOULD NOT RELY UPON SUCH INFORMATION
OR REPRESENTATIONS AS HAVING BEEN AUTHORIZED BY
XYBERNAUT CORPORATION. THIS PROSPECTUS DOES NOT                       22,115,709
CONSTITUTE AN OFFER OF ANY SECURITIES OTHER                    SHARES OF COMMON STOCK
THAN THOSE TO WHICH IT RELATES OR AN OFFER TO
SELL, OR A SOLICITATION OF AN OFFER TO BUY,
THOSE TO WHICH IT RELATES IN ANY STATE TO ANY
PERSON TO WHOM IT IS NOT LAWFUL TO MAKE SUCH
OFFER IN SUCH STATE. THE DELIVERY OF THIS
PROSPECTUS AT ANY TIME DOES NOT IMPLY THAT THE
INFORMATION HEREIN IS CORRECT AS OF ANY TIME                    XYBERNAUT CORPORATION
AFTER THE DATE OF THIS PROSPECTUS.

               TABLE OF CONTENTS

                                          Page
                                          ----

Risk Factors..................................2
Information Regarding Forward-Looking
      Statements .............................8
Where You Can Find More
      Information About Us....................8
Use of Proceeds...............................9
Dilution.....................................10
Selling Stockholders ........................10                    -------------
Description of Securities....................13
Plan of Distribution ........................13                     PROSPECTUS
Indemnification for Securities
      Act Liabilities........................16                    -------------
Legal Matters................................17
Experts .....................................17

                                                              ----------------------, 2003


==============================================     ==============================================





                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

         ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

         The following table sets forth the various expenses which will be paid
by us in connection with the issuance and distribution of the securities being
registered on this registration statement. The selling stockholders will not
incur any of the expenses set forth below. All amounts shown are estimates.

                Filing fee for registration statement        $     1,837.64
                Legal fees and expenses                      $    10,000.00
                Accounting expenses..........................$     5,000.00
                                                             --------------
                Total........................................$    16,837.64


         ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

         Section 145 of the General Corporation Law of the State of Delaware
(the "DGCL") provides, in general, that a corporation incorporated under the
laws of the State of Delaware, such as the registrant, may indemnify any person
who was or is a party or is threatened to be made a party to any threatened,
pending or completed action, suit or proceeding (other than a derivative action
by or in the right of the corporation) by reason of the fact that such person is
or was a director, officer, employee or agent of the corporation, or is or was
serving at the request of the corporation as a director, officer, employee or
agent of another enterprise, against expenses (including attorneys' fees),
judgments, fines and amounts paid in settlement actually and reasonably incurred
by such person in connection with such action, suit or proceeding if such person
acted in good faith and in a manner such person reasonably believed to be in or
not opposed to the best interests of the corporation, and, with respect to any
criminal action or proceeding, had no reasonable cause to believe such person's
conduct was unlawful. In the case of a derivative action, a Delaware corporation
may indemnify any such person against expenses (including attorneys' fees)
actually and reasonably incurred by such person in connection with the defense
or settlement of such action or suit if such person acted in good faith and in a
manner such person reasonably believed to be in or not opposed to the best
interests of the corporation, except that no indemnification will be made in
respect of any claim, issue or matter as to which such person will have been
adjudged to be liable to the corporation unless and only to the extent that the
Court of Chancery of the State of Delaware or any other court in which such
action was brought determines such person is fairly and reasonably entitled to
indemnity for such expenses.

         Our certificate of incorporation provides that directors will not be
personally liable for monetary damages to us or our stockholders for breach of
fiduciary duty as a director, except for liability resulting from a breach of
the director's duty of loyalty to us or our stockholders, intentional misconduct
or willful violation of law, actions or inactions not in good faith, an unlawful
stock purchase or payment of a dividend under Delaware law, or transactions from
which the director derives improper personal benefit. Such limitation of
liability does not affect the availability of equitable remedies such as
injunctive relief or rescission. Our certificate of incorporation also
authorizes us to indemnify our officers, directors and other agents, by bylaws,



agreements or otherwise, to the fullest extent permitted under Delaware law. We
have entered into an indemnification agreement with each of our directors and
officers which may, in some cases, be broader than the specific indemnification
provisions contained in our certificate of incorporation or as otherwise
permitted under Delaware law. Each indemnification agreement may require us,
among other things, to indemnify such officers and directors against certain
liabilities that may arise by reason of their status or service as a director or
officer, against liabilities arising from willful misconduct of a culpable
nature, and to obtain directors' and officers' liability insurance if available
on reasonable terms.

         We maintain directors and officers liability policies that contain a
combined limit of liability of $12,500,000 per policy year.

ITEM 16. EXHIBITS.

NUMBER   DESCRIPTION OF EXHIBIT

4.1      Form of Warrant issued to Capecove International Ltd.
4.2      Form of Common Stock and Warrant Purchase Agreement, dated as of June
         4, 2003, between Capecove International Ltd. and Xybernaut Corporation.
4.3      Form of Registration Rights Agreement, dated as of June 4, 2003,
         between Capecove International Ltd. and Xybernaut Corporation.
4.4      Form of Warrant issued to London Properties Ltd.
4.5      Form of Common Stock and Warrant Purchase Agreement, dated as of May
         30, 2003, between London Properties Ltd. and Xybernaut Corporation.
4.6      Form of Registration Rights Agreement, dated as of May 30, 2003,
         between London Properties Ltd. and Xybernaut Corporation.
4.7      Form of Warrant issued to Sussex Consulting Ltd.
4.8      Form of Common Stock and Warrant Purchase Agreement, dated as of May
         30, 2003, between Sussex Consulting Ltd. and Xybernaut Corporation.
4.9      Form of Registration Rights Agreement, dated as of May 30, 2003,
         between Sussex Consulting Ltd. and Xybernaut Corporation.
5.1      Opinion of Jenkens & Gilchrist Parker Chapin LLP.
23.1     Consent of Grant Thornton LLP.
23.2     Consent of Jenkens & Gilchrist Parker Chapin LLP (included in their
         opinion filed as Exhibit 5.1).


ITEM 17. UNDERTAKINGS.

         The undersigned registrant hereby undertakes:

         (1) To file, during any period in which offers or sales are being made,
a post-effective amendment to this registration statement;

               (i) To include any prospectus required by Section 10(a)(3) of the
         Securities Act of 1933;




               (ii) To reflect in the prospectus any facts or events arising
         after the effective date of the registration statement (or the most
         recent post-effective amendment thereof) which, individually or in the
         aggregate, represent a fundamental change in the information set forth
         in the registration statement. Notwithstanding the foregoing, any
         increase or decrease in volume of securities offered (if the total
         dollar value of securities offered would not exceed that which was
         registered) and any deviation from the low or high and of the estimated
         maximum offering range may be reflected in the form of prospectus filed
         with the Securities and Exchange Commission pursuant to Rule 424(b) if,
         in the aggregate, the changes in volume and price represent no more
         than 20 percent change in the maximum aggregate offering price set
         forth in the "Calculation of Registration Fee" table in the effective
         registration statement.

               (iii) To include any material information with respect to the
         plan of distribution not previously disclosed in the registration
         statement or any material change to such information in the
         registration statement;

         (2) That, for the purpose of determining any liability under the
Securities Act of 1933, each such post-effective amendment will be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such securities at that time will be deemed to be the initial bona
fide offering thereof.

         (3) To remove from registration by means of a post-effective amendment
any of the securities being registered which remain unsold at the termination of
the offering.

         Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers and controlling persons of
the registrant pursuant to the foregoing provisions, or otherwise, the
registrant has been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the
Securities Act and is, therefore, unenforceable.

         In the event that a claim for indemnification against such liabilities
(other than the payment by the registrant of expenses incurred or paid by a
director, officer or controlling person of the registrant in the successful
defense of any action, suit or proceeding) is asserted by such director, officer
or controlling person in connection with the securities being registered, the
registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such indemnification by it is against public policy as
expressed in the Securities Act and will be governed by the final adjudication
of the issue.

         The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement will be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time will be deemed to be the initial bona fide offering thereof.





                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-3 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Fairfax, Commonwealth of Virginia on June 18, 2003.

                                  XYBERNAUT CORPORATION


                                  By: /s/ Edward G. Newman
                                     -------------------------------------
                                          Edward G. Newman
                                          Chief Executive Officer and
                                          Chairman of the Board of Directors


                                POWER OF ATTORNEY

         KNOW ALL MEN BY THESE PRESENTS, that each individual whose signature
appears below constitutes Edward G. Newman and Steven A. Newman, each acting
alone, his true and lawful attorney-in-fact and agent, with full power of
substitution and resubstitution, for him and in his name, place and stead, in
any and all capacities, to sign any and all amendments to this Form S-3 and to
file the same with exhibits thereto, and all documents in connection therewith,
with the Securities and Exchange Commission, granting unto said
attorneys-in-fact and agents, and each of them, full power and authority to do
and perform each and every act and thing requisite and necessary to be done in
and about the premises, as fully to all intents and purposes as he might or
could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents or any of them, or their or is substitute or
substitutes, may lawfully do or cause to be done by virtue hereof.

         Pursuant to the requirements of the Securities Act of 1933, this
registration statement on Form S-3 has been signed below by the following
persons in the capacities indicated on June 18, 2003.

    SIGNATURE                          TITLE

/s/ Edward G. Newman              Chief Executive Officer and
- --------------------------        Chairman of the Board of Directors
Edward G. Newman


/s/ Steven A. Newman              President, Chief Operating Officer and
- --------------------------        Vice Chairman of the Board of Directors
Steven A. Newman, M.D.


/s/ Thomas D. Davis               Senior Vice President and Chief Financial
- --------------------------        Officer
Thomas D. Davis


/s/ Kazuyuki Toyosato             Executive Vice President and Director
- --------------------------
Kazuyuki Toyosato





/s/ Eugene J. Amobi               Vice President and Director
- --------------------------
Eugene J. Amobi


/s/ Martin Eric Weisberg          Secretary and Director
- --------------------------
Martin Eric Weisberg, Esq.


                                  Director
- --------------------------
James S. Gilmore III, Esq.


/s/ Marc Ginsberg                 Director
- --------------------------
Marc Ginsberg


/s/ Philip E. Pearce              Director
- --------------------------
Phillip E. Pearce


/s/ James J. Ralabate             Director
- --------------------------
James J. Ralabate


/s/ Harry E. Soyster              Director
- --------------------------
Lt. Gen. Harry E. Soyster


/s/ Edwin Vogt                    Director
- --------------------------
Dr. Edwin Vogt


                                  Director
- --------------------------
Noritsugu Yamaoka





                                 SECURITIES AND
                                    EXCHANGE
                                   COMMISSION

                             WASHINGTON, D.C. 20549

                                  -------------




                                   EXHIBITS TO

                                    FORM S-3

                             REGISTRATION STATEMENT

                                      UNDER

                           THE SECURITIES ACT OF 1933

                                  -------------







                              XYBERNAUT CORPORATION
                       (EXACT NAME OF ISSUER AS SPECIFIED
                                 IN ITS CHARTER)



                                  JUNE 19, 2003






NUMBER   DESCRIPTION OF EXHIBIT

4.1      Form of Warrant issued to Capecove International Ltd.
4.2      Form of Common Stock and Warrant Purchase Agreement, dated as of June
         4, 2003, between Capecove International Ltd. and Xybernaut Corporation.
4.3      Form of Registration Rights Agreement, dated as of June 4, 2003,
         between Capecove International Ltd. and Xybernaut Corporation.
4.4      Form of Warrant issued to London Properties Ltd.
4.5      Form of Common Stock and Warrant Purchase Agreement, dated as of May
         30, 2003, between London Properties Ltd. and Xybernaut Corporation.
4.6      Form of Registration Rights Agreement, dated as of May 30, 2003,
         between London Properties Ltd. and Xybernaut Corporation.
4.7      Form of Warrant issued to Sussex Consulting Ltd.
4.8      Form of Common Stock and Warrant Purchase Agreement, dated as of May
         30, 2003, between Sussex Consulting Ltd. and Xybernaut Corporation.
4.9      Form of Registration Rights Agreement, dated as of May 30, 2003,
         between Sussex Consulting Ltd. and Xybernaut Corporation.
5.1      Opinion of Jenkens & Gilchrist Parker Chapin LLP.
23.1     Consent of Grant Thornton LLP.
23.2     Consent of Jenkens & Gilchrist Parker Chapin LLP (included in their
         opinion filed as Exhibit 5.1).