Pambak is a river in the Alexandropol uezd of the former Iravan governorate, later in the former Boyuk Garakilsa (Kirovakan, Gugark) district, and currently in the Lori province. The length of the river is 86 km.

The hydronym was coined by combining the words “bom” (boom) meaning in Turkic “a broken rock in the river” and “bak” meaning “the height, an elevation, the beginning”.