The Amstel is a river in the Netherlands which runs through the city of Amsterdam. The river's name is derived from Aeme stelle, old Dutch for "area abounding with water".

The well-known Magere Brug bridge in Amsterdam crosses the river, as do the Blauwbrug, Hoge Sluis and Berlagebrug bridges. The Stopera city hall and opera house and Carré theatre are both located on the banks of the river.

A nationally televised concert is held on the river every year on Bevrijdingsdag (Liberation Day). The rowing races Head of the River Amstel and Heineken Roeivierkamp are held on the river annually. The river also forms part of the route of the Canal Parade, Amsterdam's annual floating gay pride parade.

Amstel beer is named after the river. The Amstel brewery, as a lot of other breweries, was situated close to the Amstel river because clean river water was used to produce the beer.

The river originally began where two smaller rivers, the Drecht and Kromme Mijdrecht, joined together, a little south of Uithoorn. After the construction of a canal, the Amstel-Drecht Kanaal, the river (including the canal) now begins where the Drecht and another canal, the Aarkanaal, meet one another, near the town of Nieuwveen. Tributary rivers are the Kromme Mijdrecht, Bullewijk and Waver.