An auto rickshaw is a motorized version of the pulled rickshaw or cycle rickshaw. Most have three wheels and do not tilt. They are known by many terms in various countries including auto, auto rickshaw, baby taxi, mototaxi, pigeon, jonnybee, bajaj, chand gari, lapa, tuk-tuk, tum-tum, Keke-napep, Maruwa, 3wheel, pragya, bao-bao, easy bike, cng and tukxi.

The auto rickshaw is a common form of transport around the world, both as a vehicle for hire and for private use. They are especially common in countries with tropical or subtropical climates, since they usually are not fully enclosed, and are found in many developing countries because they are relatively inexpensive to own and operate. There are many different auto rickshaw designs. The most common type is characterized by a sheet-metal body or open frame resting on three wheels; a canvas roof with drop-down side curtains; a small cabin at the front for the driver operating handlebar controls; and a cargo, passenger, or dual purpose space at the rear. Another type is a motorcycle that has an expanded sidecar or, less often, is pushing or pulling a passenger compartment.

As of 2019, Bajaj Auto of India is the world's largest auto rickshaw manufacturer, selling 780,000 during the 2019 fiscal year.