Arimatsu (有松町, Arimatsu-chō) is a town in Aichi Prefecture, Japan. It houses the Arimatsu Station of the Meitetsu-Nagoya Line, roughly 11 kilometres (11,000 m) southeast of downtown Nagoya. The town merged into Nagoya on 1 December 1964, and is now a part of Midori-ku, Nagoya.