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.