Esneux (French pronunciation: [ɛsnø]; Walloon: Esneu) is a municipality of Wallonia located in the province of Liège, Belgium.

The total area is 34.05 km2 (13.15 sq mi) which gives a population density of 384 inhabitants per km².

A railway line links the 4 villages (and then continues further south to Luxembourg).

Although not popular with large numbers of international tourists, Esneux and Tilff do attract people from the local region, due to the local restaurants, the Esneux and Tilff castle, the bee-museum, and several parks.

In Esneux, the largest giant sequoia of Belgium can be found.