Jalhay (French pronunciation: [ʒalɛ]; Walloon: Djalhé) is a municipality of Wallonia located in the province of Liège, Belgium.

The total area is 107.75 km2 which gives a population density of 74 inhabitants per km2.

The municipality consists of the following districts: Jalhay and Sart.

The highest point of the municipality is the Baraque Michel in the High Fens, at 674 metres (2,211 ft).

This Liège Province location article is a stub.