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A people mover or automated people mover is a fully automated, grade-separated transit system. The term is generally used only to describe systems serving relatively small areas such as airports, downtown districts or theme parks, but is sometimes applied to considerably more complex automated systems.The term does not imply any particular technology, and a people mover may use technologies such as monorail, duorail, automated guide way transit or maglev. Propulsion may involve conventional on-board electric motors, linear motors or cable traction.

Some complex APMs deploy fleets of small vehicles over a track network with off-line stations, and supply near non-stop service to passengers. These taxi-like systems are more usually referred to as personal rapid transit. Other complex APMs have similar characteristics to mass transit systems, and there is no clear cut distinction between a complex APM of this type and an automated mass transit system.