EXHIBIT 5.1
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[GRAPHIC OMITTED] LACK0WICZ,                         SUITE 300,204 BLACK STREET
                  SHIER                               WHITEHORSE, YUKON YlA 2M9
                  & HOFFMAN                             TELEPHONE: 867-668-5252
                                                              FAX: 867-668-5251
BARRISTERS & SOLICITORS                    E-MAIL: lackowicz.shier@yukonlaw.com
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IN ASSOCIATION WITH

[GRAPHIC OMITTED] Bull,                   Reply Attention To: Paul W. Lackowicz
                  Housser                 DIRECT E-MAIL:plackowicz@yukonlaw.com
                  & Tupper
                                                             Our File No: 33661

                                                                    May 31,2006


Ivanhoe Mines Ltd.
Suite 654, 999 Canada Place
Vancouver, BC V6C 3E1

Dear Sirs/Mesdames:

         RE: IVANHOE MINES LTD. - 2006 STOCK OPTION PLAN

         We act as Yukon counsel to Ivanhoe Mines Ltd. (the "Corporation").  We
have been asked by the  Corporation to render an opinion in connection with the
Corporation's  preparation  and filing of a Registration  Statement on Form S-8
(the  "Registration  Statement")  with the Securities  and Exchange  Commission
pursuant to the SECURITIES ACT OF 1933, as amended. The Registration  Statement
relates to an aggregate  of 3,000,000  common  shares of the  Corporation  (the
"Shares")  which maybe issued  pursuant to an  amendment  to the  Corporation's
Employees' and Directors'  Equity  Incentive Plan (the "Plan") which  increases
the  maximum  number of shares  issuable  under  the Plan  from  29,000,000  to
32,000,000.

SCOPE OF REVIEW

         For the purposes of our opinion,  we have reviewed faxed copies of the
following:

         1.    an  emailed  copy  of a  Certificate  of  the  Secretary  of the
               Corporation, dated May 18, 2006 certifying the following:

               a.    Resolutions of the Directors of the Corporation  passed at
                     a meeting held March 30, 2006;

               b.    Resolutions of the Shareholders of the Corporation  passed
                     May 12,2006; and

               c.    a  consolidated  copy  of the  Employees'  and  Directors'
                     Equity Incentive Plan dated May 12, 2006;


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    PAUL W. LACKOWICZ          DANIEL S. SHIER            DEBBIE P. HOFFMAN
     LORI A. LAVOIE           SERGE M. LAMARCHE       BRENDA F. SMICHURA-JEROME

                       COUNSEL: TIMOTHY S. PRESTON, Q.C.


Page 2
File No.  33661


         2.    a Certificate  of Status for the  Corporation  issued on May 25,
               2006 by the Yukon Registrar of  Corporations  under the BUSINESS
               CORPORATIONS ACT (Yukon); and

         3.    an electronic  copy draft copy of the Form S-8, to be filed with
               the SEC in relation to the Shares (the "Draft Form S-8").

         We have examined  originals or copies,  certified or identified to our
satisfaction,  of the  articles  and  by-laws  of the  Corporation  and of such
corporate  records  of  the  Corporation,  certificates  of  public  officials,
officers of the  Corporation  and such other documents and have considered such
questions of law and made such other  investigations as we have deemed relevant
or necessary as a basis for the opinions hereinafter expressed.

ASSUMPTIONS

         In rendering this opinion, we have assumed:

1.       The genuineness of all signatures;

2.       The authenticity and completeness of all documents  submitted to us as
originals;

3.       The  conformity  to original  documents  and the  completeness  of all
documents  submitted  to us or received by us as  conformed  copies,  certified
copies,  photocopies or facsimile transmissions,  and  the  authenticity of the
originals where certified copies,  photocopies or facsimile  transmissions have
been submitted or received;

4.       The  accuracy,  completeness  and  truth  of all  facts  set  forth in
corporate  records or official  public records and  certificates  and any other
documents,  certificates or records  supplied by corporate or public  officials
and the identity and capacity of all individuals acting or purporting to act as
such; and

5.       The Form S-8 filed with the SEC in relation to this transaction is not
materially different from the Draft Form S-8.

PRACTICE RESTRICTION

         We are  solicitors  qualified  to carry on the  practice of law in the
Yukon  Territory  only and we  express  no  opinion  as to any laws or  matters
governed by the laws other than the Yukon  Territory  and the  federal  laws of
Canada applicable therein in effect as at the date of this opinion.



Page3
File No.  33661


OPINION

         Based and relying upon the foregoing, we are of the opinion that, upon
receipt  by  the  Corporation  of  full  payment   therefor   pursuant  to  the
Corporation's  Employees' and Directors'  Equity Incentive Plan and delivery by
the Corporation of the share  certificates  representing the Shares, the Shares
will be validly issued as fully paid and non-assessable.

         We hereby consent to the filing of this opinion with the Commission as
an exhibit to the Registration Statement.

                                             Yours very truly,

                                             LACKOWICZ, SHIER & HOFFMAN

                                             /s/ Lackowicz, Shier & Hoffman