Jean Louis Marius Guichet[1] (born 10 August 1927 in Marseille, France) is a French industrialist and former racing driver.

He began his racing career as a self-funded independent driver but would later drive for teams including Scuderia Ferrari, the Abarth works team, Ecurie Filipinetti, Maranello Concessionaires, and NART.

[2][3][4] Guichet is also known as the first owner of 1963 Ferrari 250 GTO chassis number 5111GT, one of only 36 produced.

He successfully raced this car, including an overall win of the 1963 Tour de France with co-driver José Behra.

This biographical article related to French auto racing is a stub.