EXHIBIT 5.1



                    [LETTERHEAD OF JENKENS & GILCHRIST, P.C.]





                                October 26, 2005





ENGlobal Corporation
654 N. Sam Houston Pkwy. E., Suite 400
Houston, Texas  77060-5914

     Re:   Registration Statement on Form S-3

Ladies and Gentlemen:

     We have acted as counsel to ENGlobal Corporation, a Nevada corporation (the
"Company"), in connection with the registration under the Securities Act of
1933, as amended (the "Act"), of 2,960,714 shares of Company's Common Stock (the
"Shares") for resale on behalf of certain selling stockholders. The Shares were
registered pursuant to a Registration Statement on Form S-3 filed with the
Securities and Exchange Commission on October 27, 2005 (the "Registration
Statement").

     In connection with this opinion, we have examined and are familiar with
originals or copies, certified or otherwise, of such documents and records of
the Company and such statutes, regulations and other instruments as we have
deemed necessary or advisable for the purposes of this opinion, including (i)
the Registration Statement, (ii) the Restated Articles of Incorporation of the
Company, as filed with the Secretary of State of the State of Nevada, and (iii)
the Amended and Restated Bylaws of the Company.

     We have assumed that all signatures on all documents presented to us are
genuine, that all documents submitted to us as originals are accurate and
complete, that all documents submitted to us as copies are true and correct
copies of the originals thereof, that all information submitted to us was
accurate and complete and that all persons executing and delivering originals or
copies of documents examined by us were competent to execute and deliver such
documents.

     Based on the foregoing and having due regard for legal considerations we
deem relevant, we are of the opinion that the Shares, when sold as described in
the Registration Statement, will be legally issued, fully paid and
nonassessable.



                               Jenkens & Gilchrist
                           A PROFESSIONAL CORPORATION



October 26, 2005
Page 2



     This opinion is limited in all respects to the laws of the State of Texas
and the United States of America and the Nevada General Corporation Law. You
should be aware that we are not admitted to the practice of law in the State of
Nevada. Accordingly, the opinion herein as to the laws of the State of Nevada is
based solely upon the latest unofficial compilation of the Nevada General
Corporation Law available to us.

     This opinion may be filed as an exhibit to the Registration Statement.

                                           Sincerely,

                                           /s/ Jenkens & Gilchrist, P.C.

                                           JENKENS & GILCHRIST,
                                           A Professional Corporation