Endologix (ELGX) 10-Q 2005 Q2 Quarterly report

Exhibit 32.1

Certification of Chief Executive Officer Pursuant toRule
13a-14(b)/15d-14(b) of the Securities Exchange Act of 1934

and 18 U.S.C. Section 1350

I, Paul McCormick, Chief Executive Officer of the Company, certify pursuant to Rule 13(a)-14(b) or Rule 15(d)-14(b) of the Securities Exchange Act of 1934 and, 18 U.S.C. Section 1350, that:

(1) The Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2005 complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m(a) or 780(d)); and

(2) The information contained in such Quarterly Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: August 5, 2005 By:      /s/ Paul McCormick           __________________________________________
           Paul McCormick
           President and Chief Executive Officer