Jeep is an automobile marque of Chrysler. It is the oldest off-road vehicle brand, with Land Rover coming in second. The original vehicle which first appeared as the prototype Bantam BRC became the primary light 4-wheel-drive vehicle of the US Army and allies during the World War II and postwar period.

Many vehicles serving similar military and civilian roles have since been created by many nations. Jeeps were also used by the U.S. Postal Service in the 20th century for mail services.