埃尔夫特河是德国的河流，位于北莱茵-威斯特法伦州，发源自内特尔斯海姆附近，河道全长103公里，流域面积1,838平方公里，河畔城镇有诺伊斯。

The Erft (pronounced[ʔɛɐ̯ft]) is a river in North Rhine-Westphalia, Germany. It flows through the foothills of the Eifel, and joins the Lower Rhine (left tributary). Its origin is near Nettersheim, and its mouth in Neuss-Grimlinghausen south of the Josef Cardinal Frings Bridge. The river is 103 kilometres (64 mi) long, which is significantly shorter than it was originally. Due to the open-pit mining of lignite in the Hambacher Loch, the flow of the river had to be changed.