An auto show, or motorshow, is a public exhibition of current automobile models, debuts, concept cars, or out-of-production classics. It is commonly attended by automobile manufacturers. Most auto shows occur once or twice a year. They are vital to car manufacturers and local dealers as a public relations exercise, for advertising products, and for increasing publicity.

There are other auto shows or car shows that occur on a more frequent basis, like weekly. It's not known if there is a regularly accepted term for these more frequent, informal "car rallies" or "car enthusists events". Some meeting events have themes, such at classic cars, hot rods, etc. In any case, these car gathering are more localized events, typically comprised of car enthusiasts that meet to socialize and enjoy their enthusiasm with other car owners.

For car show events in the Southern California area see the article Cars and Coffee.

The Organisation Internationale des Constructeurs d'Automobiles organises many auto shows.