Jonathan Klein (born June 23, 1987) is an American racing driver from Long Grove, Illinois. After racing Formula Atlantic cars in the SCCA he moved up to professional racing in 2005 in Star Mazda, finishing 13th for . In 2006 he moved to the Indy Pro Series driving for Andretti Green Racing. At the time one of Andretti Green's IndyCar entries was sponsored by Klein Tools which at the time was headed by Jonathan Klein's father, Rick Klein. Klein finished second in Indy Pro Series points despite not winning, but did capture a pole at Kentucky Speedway, finishing second, and finished second in the season closer at Chicagoland Speedway. Klein returned to the series in 2007 driving for Team Moore Racing. Klein finished 12th in points with a best finish of 3rd (twice). He returned to the series