Pepinster (French pronunciation: [pepɛ̃stɛʁ] or [pəpɛ̃stɛʁ]) is a municipality of Wallonia located in the province of Liège, Belgium.

The total area is 24.79 km2 which gives a population density of 386 inhabitants per km2.

Pepinster is situated at the confluence of the rivers Hoëgne and Vesdre.

Pepinster was hit extremely hard by the 2021 European floods, the village was temporarily cut off from roads.

[2] This Liège Province location article is a stub.