- Source: Thar (river)
The Thar is a small river of France, in the administrative region Normandie, département de la Manche. It is 24.8 km (15 mi) long, rising to the east of La Haye-Pesnel and emptying into the Bay of Mont Saint-Michel, in the English Channel.
In the Middle Ages the Thar formed the traditional boundary between the Cotentin to the north and the Avranchin to the south.