The Gileppe is a river in Belgium with a length of about . It is a left tributary of the Vesdre. Its source is in the High Fens of eastern Belgium. The Gileppe flows through an artificial lake (Lac de la Gileppe), built in 1867–78 and enlarged to in 1968–71, created by the Gileppe Dam. The Gileppe flows into the Vesdre between Eupen and Limbourg. Rivers of the Ardennes (Belgium) Rivers of Belgium Rivers of Liège Province Jalhay Limbourg