Olivier Grouillard (born 2 September 1958 in Fenouillet) is a racing driver from France. He started racing go-karts from the age of fourteen competing in events such as the Volant Elf. He progressed to Formula Renault winning the title before Grouillard competed in F3000 from 1985 to 1988 taking two wins. He also participated in the Birmingham Superprix but did not start the race.
In 1989, Grouillard joined the Ligier Formula One team before joining the Osella team for 1990 and 1991 when the team was renamed Fondmetal. His last season came in 1992, when Grouillard drove for Tyrrell. He left the sport following the year without receiving offers for a drive in 1993. After leaving Formula One, Grouillard raced in the CART PPG World Series, competiting in the Indianapolis 500 for which he did not qualify but showed consistency. Grouillard became well known for driving in Sports Cars between 1994 and 2001 having success. During his time in Sports Cars, he raced in the BPR Global GT Series, the FIA GT Championship, the Daytona 24 Hours, the Le Mans 24 Hours and the American Le Mans Series. He retired from motorsport at the end of 2001.