Marco Michael Andretti (born March 13, 1987) is an American professional auto racing driver. He competes part-time in the NASCAR Craftsman Truck Series, driving the No. 04 Chevrolet Silverado for Roper Racing and part-time in the ARCA Menards Series, driving the No. 17 Chevrolet SS for Cook Racing Technologies.
He formerly drove in the IndyCar Series for 15 years with his family's team Andretti Herta Autosport. During his time in IndyCar, Andretti won two races and finished a career-high fifth in points in 2013 and was the 2006 IndyCar Series Rookie of the Year. In addition to IndyCar, he also has raced in the NASCAR Xfinity Series, Formula E, IMSA SportsCar Championship, and raced in the 2010 24 Hours of Le Mans.
From 2021 to 2023, Andretti raced in the Superstar Racing Experience, in which he was named the 2022 SRX Series champion.
Andretti is the grandson of racing legend Mario Andretti and the son of CART champion Michael Andretti.