Zipcar is an American car-sharing company and a subsidiary of Avis Budget Group. Zipcar provides vehicle reservations to its members, billable by the minute, hour or day; members may have to pay a monthly or annual membership fee in addition to car reservations charges. Gas, maintenance, insurance options, and a dedicated parking spot are included. Zipcar was founded in 2000 by Antje Danielson and Robin Chase.

Carsharing or car sharing or car clubs (UK) is a model of car rental where people rent cars for short periods of time, often by the hour. It differs from traditional car rental in that the owners of the cars are often private individuals themselves, and the car sharing facilitator is generally distinct from the car owner. Car sharing is part of a larger trend of shared mobility.