The Abukuma River (阿武隈川, Abukuma-gawa), with a length of 234 km, is the second longest river in the Tōhoku region of Japan and the 6th longest river in Japan. It runs through Fukushima Prefecture and Miyagi Prefecture, rising from springs in the peaks of the Nasu mountains, collecting water from tributaries leaving the Ōu Mountains and the Abukuma Highlands (阿武隈高地, Abukuma-kōchi), then emptying into the Pacific Ocean as a major river.