EX-99.CODE ETH


                           HATTERAS MASTER FUND, L.P.
                      HATTERAS MULTI-STRATEGY FUND I, L.P.
                     HATTERAS MULTI-STRATEGY TEI FUND, L.P.


                     CODE OF ETHICS FOR PRINCIPAL EXECUTIVE

                          AND SENIOR FINANCIAL OFFICERS

                         Effective Date: March 10, 2005


     I.        COVERED OFFICERS/PURPOSE OF THE CODE

         This Code of Ethics (the "Code") for the investment companies within
         the Hatteras Master Fund, L.P., Hatteras Multi-Strategy Fund I, L.P.,
         and Hatteras Multi-Strategy TEI Fund, L.P. (collectively the "Funds'
         and each, a "Fund") applies to the Funds' Principal Executive Office,
         Principal Financial Officer, and Principal Accounting Officer, if any
         (the "Covered Officers") for the purpose of promoting:

               o    honest and ethical conduct, including the ethical handling
                    of actual or apparent conflicts of interest between personal
                    and professional relationships;

               o    full, fair, accurate, timely and understandable disclosure
                    in reports and documents that a Fund files with, or submits
                    to, the Securities and Exchange commission ("SEC"), and in
                    other public communications made by a Fund;

               o    compliance with applicable laws and governmental rules and
                    regulations;

               o    the prompt internal reporting of violations of the Code to
                    an appropriate person or persons identified in the Code; and

               o    accountability for adherence to the Code.

               Each Covered Officer shall adhere to a high standard of business
               ethics and shall be sensitive to situations that may give rise to
               actual or apparent conflicts of interest.


    II.        ADMINISTRATION OF THE CODE

               ADMINISTRATION. The administration of the Code shall be
          supervised by the Funds' Chief Compliance Officer.

               Any waivers sought by the Covered Officer must be approved by
          each Audit Committee of the Funds (collectively, the "Audit
          Committee").



    III.           MANAGING CONFLICTS OF INTEREST

               OVERVIEW. A "conflict of interest" occurs when a Covered
          Officer's private interest interferes with the interests of, or
          his/her service to, a Fund. For example, a conflict of interest would
          arise if a Covered Officer, or a family member, receives improper
          personal benefits as a result of the Covered Officer's position with a
          Fund.

               Certain conflicts of interest arise out of the relationships
          between Covered Officers and a Fund and already are subject to
          conflict of interest provisions in the Investment Company Act of 1940,
          as amended (the "Company Act"), and the Investment Advisers Act of
          1940, as amended (the "Advisers Act"). For example, Covered Officers
          may not individually engage in certain transactions (such as the
          purchase or sale of securities or other property) with a Fund because
          of their status as "affiliated persons" of the Fund. A Fund's and its
          investment adviser's compliance programs and procedures are designed
          to prevent, or identify and correct, violations of those provisions.
          This Code does not, and is not intended to, repeat or replace those
          programs and procedures, and such conflicts fall outside of the
          parameters of this Code.

               Although typically not presenting an opportunity for improper
          personal benefit, conflicts may arise from, or as a result of, the
          contractual relationship between a Fund and its investment adviser,
          administrator, principal underwriter, pricing and bookkeeping agent
          and/or transfer agent (each, a "Service Provider") of which the
          Covered Officers are also officers or employees. As a result, this
          Code recognizes that the Covered Officers will, in the normal course
          of their duties (whether formally for a Fund or for a Service
          Provider, or for both), be involved in establishing policies and
          implementing decisions that will have different effects on the Service
          Provider and a Fund. The participation of the Covered Officers in such
          activities is inherent in the contractual relationship between the
          Fund and the Service Provider and is consistent with the performance
          by the Covered Officers of their duties as officers of a Fund. In
          addition, it is recognized by the Board that the Covered Officers may
          also be officers or employees of one or more other investment
          companies covered by this or other codes.

               Other conflicts of interest are covered by the Code, even if such
          conflicts of interest are not subject to provisions of the Company Act
          and the Advisers Act. The following list provides examples of
          conflicts of interest under the Code, but Covered Officers should keep
          in mind that these examples are not exhaustive. The overarching
          principle is that the personal interest of a Covered Officer should
          not be placed improperly before the interest of a Fund.

               Each Covered Officer must:

                    o    not use personal influence or personal relationships
                         improperly to influence investment decisions or
                         financial reporting by a Fund whereby

                         the Covered Officer or an immediate family member would
                         benefit personally to the detriment of a Fund;

                    o    not cause a Fund to take action, or fail to take
                         action, for the individual personal benefit of the
                         Covered Officer or an immediate family member rather
                         than the benefit of the Fund;(1)

                    o    not use material non-public knowledge of portfolio
                         transactions made or contemplated for the Company to
                         trade personally or cause others to trade personally in
                         contemplation of the market effect of such
                         transactions; and

                    o    report at least annually his or her affiliations and
                         other relationships on each Fund's annual Directors and
                         Officers Questionnaire.

               There are some conflict of interest situations that must be
          approved by the Chief Compliance Officer, after consultation with the
          Chief Legal Officer. Those situations include, but are not limited to:

                    o    serve as director on the board of any public or private
                         company;

                    o    the receipt during any 12-month period of any gifts in
                         excess of $100 in the aggregate from a third party that
                         does or seeks to do business with the Funds; and

                    o    the receipt of any entertainment from any company with
                         which a Fund has current or prospective business
                         dealings, unless such entertainment is
                         business-related, reasonable in cost, appropriate as to
                         time and place, and not so frequent as to raise any
                         question of impropriety.


    IV.             DISCLOSURE AND COMPLIANCE

                    Each Covered Officer shall:

                    o    be familiar with the disclosure requirements generally
                         applicable to the Funds;

                    o    not knowingly misrepresent, or cause others to
                         misrepresent, facts about any Fund to others, whether
                         within or outside the Fund, including to the Fund's
                         trustees or directors and auditors, and to governmental
                         regulators and self-regulatory organizations;

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(1) For purposes of this Code, personal trading activity of the Covered Officers
    shall be monitored in accordance with the Funds Code of Ethics. Each Covered
    Officer shall be considered an "Access Person" under such Code. The term
    "immediate family" shall have the same meaning as provided in such Code.



                    o    to the extent appropriate within his/her area of
                         responsibility, consult with other officers and
                         employees of the Funds and the adviser with the goal of
                         promoting full, fair, accurate, timely and
                         understandable disclosure in the reports and documents
                         the Funds file with, or submit to, the SEC and in other
                         public communications made by the Funds; and

                    o    promote compliance with the standards and restrictions
                         imposed by applicable laws, rules and regulations.


    V.              REPORTING AND ACCOUNTABILITY

               Each Covered Officer must:


                    o    upon adoption of the Code (or after becoming a Covered
                         Officer), affirm in writing to the Board that he/she
                         has received, read and understands the Code;

                    o    annually affirm to the Board compliance with the
                         requirements of the Code;

                    o    not retaliate against any other Covered Officer or any
                         employee of the Funds or their affiliated persons for
                         reports of potential violations that are made in good
                         faith;

                    o    notify the Chief Compliance Officer promptly if he/she
                         knows of any violation of this Code; and

                    o    respond to questionnaires circulated periodically in
                         connection with the preparation of disclosure documents
                         for the Funds.

               The Chief Compliance Officer shall maintain records of all
               activities related to this Code.


               The Funds will follow the procedures set forth below in
               investigating and enforcing this Code:

                    o    The Chief Compliance Officer will take all appropriate
                         action to investigate any potential violation reported
                         to him/her;

                    o    If, after such investigation, the Chief Compliance
                         Officer determines that no violation has occurred, the
                         Chief Compliance Officer will notify the person(s)
                         reporting the potential violation, and the Chief
                         Compliance Officer will report his/her conclusions to
                         the Audit Committee;

                    o    Any matter that the Chief Compliance Officer determines
                         may be a violation will be reported to the Audit
                         Committee;


                    o    If the Audit Committee determines that a violation has
                         occurred, it will inform and make a recommendation to
                         the Board, which will consider appropriate action,
                         which may include review of, and appropriate
                         modifications to, applicable policies and procedures;
                         notification to the Chief Executive Officer of the
                         Funds; or a recommendation to sanction or dismiss the
                         Covered Officer;

                    o    The Audit Committee will be responsible for granting
                         waivers in its sole discretion;

                    o    Any changes to or waivers of this Code will, to the
                         extent required, be disclosed as provided by SEC rules.

               The Chief Compliance Officer shall:

                    o    report to the Audit Committee quarterly any approvals
                         provided in accordance with Section III of this Code;
                         and

                    o    report to the Audit Committee quarterly any violations
                         of, or material issues arising under, this Code.

    VI.      OTHER POLICIES AND PROCEDURES

               This Code shall be the sole code of ethics adopted by the Funds
          for the purposes of Section 406 of the Sarbanes-Oxley Act and the
          rules and forms applicable to registered investment companies
          thereunder. Insofar as other polices or procedures of the Funds or the
          Funds' Service Providers govern or purport to govern the behavior or
          activities (including, but not limited to, personal trading
          activities) of the Covered Officers who are subject to this Code, they
          are superseded by this Code to the extent that they overlap or
          conflict with the provisions of this Code. The Funds' and their
          investment advisers' and principal underwriter's codes of ethics under
          Rule 17j-1 under the Company Act and any policies and procedures of
          the Service Providers are separate requirements applicable to the
          Covered Officers and are not part of this Code.

    VII.     AMENDMENTS

               All material amendments to this Code must be approved or ratified
          by the Board, including a majority of independent directors or
          trustees.

    VIII.    CONFIDENTIALITY

               All reports and records prepared or maintained pursuant to this
          Code will be considered confidential and shall be maintained and
          protected accordingly.

    IX.      INTERNAL USE

               The Code is intended solely for the internal use by the Funds and
          does not constitute an admission, by or on behalf of any Fund, as to
          any fact, circumstance, or legal conclusion.