Joseph Théodule Marie Schlesser was a French Formula One and sports car racing driver. He participated in three World Championship Grands Prix, including the 1968 French Grand Prix in which he was killed. He scored no championship points. He was the uncle of Jean-Louis Schlesser who himself became a Formula One driver in the 1980s.

Jean-Louis Schlesser is a French racing driver who has competed in both circuit racing and cross-country rallying. He is the nephew of Jo Schlesser, a former Formula One driver. Jean-Louis entered two Formula One races five years apart. At the 1988 Italian Grand Prix, he and race leader Ayrton Senna crashed out after colliding; the race was ultimately the only one of the 1988 Formula One season which was not won by a McLaren.