Mikaël Grenier (born October 17, 1992) is a Canadian racing driver from Stoneham-et-Tewkesbury.

In 2009 he made six starts in Star Mazda for Andersen Racing, good enough for 18th in points.

In 2010 he drove the full Star Mazda schedule for Andersen and finished eighth in points, finishing second from the pole at O'Reilly Raceway Park at Indianapolis and winning from the pole in race one at Autobahn Country Club.

He participated in his first IndyCar Series test with KV Racing Technology in November 2013 at Sebring Raceway.

For the 2023 season, Grenier joined Team Korthoff Motorsports in the IMSA SportsCar Championship, driving in the GTD class alongside Mike Skeen.