Hummer is a brand of off-road vehicles owned by Sichuan Tengzhong, earlier owned by General Motors. The original Hummer H1 was based on the military High Mobility Multipurpose Wheeled Vehicle.

However, the Hummer H2 and the Hummer H3 were based on other, smaller civilian-market vehicles. Hummers were originally built by AM General Corporation, which was formerly AMC Jeep's General Products division, in its Mishawaka, Indiana assembly plant.