Oupeye (French pronunciation: [upɛj]; Walloon: Oûpêye) is a municipality of Wallonia located in the province of Liège, Belgium.

The municipality consists of the following districts: Haccourt, Hermalle-sous-Argenteau, Hermée, Heure-le-Romain, Houtain-Saint-Siméon, Oupeye, and Vivegnis.

Chertal is a narrow isthmus approximately 1.5 km southeast of Oupeye bounded by the Albert Canal and Meuse.

Since 1963 the land has been the site of a steel factory founded by Espérance-Longdoz (as of 2010 part of ArcelorMittal Liège).

This Liège Province location article is a stub.