Herher is a river in the Sharur-Daralayaz uezd of the former Iravan governorate, later in the former Pashali (Azizbeyov, Vayk) district, and currently in the Vayots Dzor province. It is one of the tributaries of the Arpa River.

The hydronym was coined on the basis of the ethnonym “Gargar (Herher)”.