Michael Curtis Waltrip (born April 30, 1963) is a semi-former professional race car driver and co owner of Michael Waltrip Racing. He is also an author[see Personal Life, below]. He is the younger brother of Darrell Waltrip, a three-time NASCAR champion, who is now retired, but makes occasional appearances at various races as an announcer. Waltrip is the winner of the 2001 Daytona 500 and the 2003 Daytona 500; he currently drives the #15 NAPA Toyota Camry. He is also a commentator for SPEED TV's coverage of the Camping World Truck Series and is an analyst on the Showtime series Inside NASCAR, along with Chris Myers, Brad Daugherty and Randy Pemberton.
Waltrip was born in Owensboro, Kentucky. He currently lives in Sherrills Ford, North Carolina. In the past, he has also raced in the Boston Marathon.
He appeared on the two-part April 30, 2009/May 7, 2009 episode of My Name is Earl entitled "Inside Probe."