Johannes "Jan" Lammers (born 2 June 1956 in Zandvoort, Zandvoort Municipality, North Holland, Netherlands) is a Dutch former racing driver and team principal who raced in Formula One in two separate spells, from 1979 to 1982 and in 1992. Lammers never got a drive a front-running car and racked up a large number of non-qualifications. Lammers then made his career in sportcar racing, winning the 24 Hours of Le Mans in 1988 for Jaguar, and also in IndyCar.