The Japan Mobility Show (ジャパンモビリティショー) (TMS) is a biennial auto show held in October–November at the Tokyo Big Sight, Tokyo, Japan for cars, motorcycles and commercial vehicles. Hosted by the Japan Automobile Manufacturers Association (JAMA), it is a recognized international show by the Organisation Internationale des Constructeurs d'Automobiles, and normally sees more concept cars than actual production car introductions which is the reason why the auto press see the show as one of the motorshow's big five.

An auto show, also known as a motor show or car show, is a public exhibition of current automobile models, debuts, concept cars, or out-of-production classics. It is attended by automotive industry representatives, dealers, auto journalists and car enthusiasts. Most auto shows occur once or twice a year. They are important to car manufacturers and local dealers as a public relations exercise, as they advertise new products and promote auto brands. The five most prestigious auto shows, sometimes called the "Big Five", are generally considered to be held in Detroit, Frankfurt, Geneva, Paris and Tokyo. Car enthusiast communities along the historic U.S. Route 66 are credited with general popularization of car meets, including ethnic groups such as the Hispanos of New Mexico, Chicanos, and Mexican-Americans of the Southwestern United States; lowrider, high technology, electric vehicle, and other enthusiast show, are popular in Los Angeles, Las Vegas, Albuquerque, San Francisco, and Chicago for this reason.