The Ohm (; older AmanaGREULE, Albrecht 2014. "Deutsches Gewässernamenbuch: Etymologie der Gewässernamen und der zugehörigen Gebiets-, Siedlungs- und Flurnamen". Ed. Walter de Gruyter GmbH) is a river in Hesse, Germany.
It is a right tributary of the Lahn. Its total length is . The Ohm originates in the Vogelsberg Mountains, east of the town Ulrichstein. It flows generally northwest through Ulrichstein, Mücke, Homberg, Amöneburg, Kirchhain, and joins the Lahn in Cölbe, near Marburg. Its largest tributaries are the Seenbach, Felda, Klein, Wohra and Rotes Wasser.
References