Jack Sears
 Jack Sears (born 16 February 1930) is a British former race and rally driver and was one of the principal organisers of the 1968 London-Sydney Marathon. as popularly known as Gentleman Jack. His son David is also involved in motorsport.He won the inaugural British Saloon Car Championship in 1958 driving an Austin Westminster. After finishing on joint maximum points with Tommy Sopwith it was initially suggested the champion would be decided by the toss of a coin.