Ans (French pronunciation: [ɑ̃s] ⓘ; Walloon: Anse) is a municipality and city of Wallonia located in the province of Liège, Belgium.

The total area is 23.35 km2 which gives a population density of 1,170 inhabitants per km2.

Ans is the finish location of the road bicycle race Liège–Bastogne–Liège, the oldest of the classic cycle races held every April.

The municipality consists of the following districts: Since 1999, the twinnings with the Pays d'Ans association with Périgord.

This Liège Province location article is a stub.