Stéphan Grégoire (born May 14, 1969 in Neufchâteau, Vosges) is a French race car driver currently living in Zionsville, Indiana.

Gregoire is a veteran of the 24 Hours of Le Mans, Rolex Sports Car Series, the Indianapolis 500, and the Indy Racing League.

He made 44 IRL starts between 1996 and 2001 with a best finish of 2nd at Pikes Peak International Raceway in 1997.

Gregoire was in an accident late in the 2000 season at the Texas Motor Speedway during a test run which caused him to have bruises to his left knee and ankle.

[1] He returned to the IRL and the "500" for the 2006 race in a car fielded by Team Leader Motorsports and finished 29th.