Ōsu is an area located in the Naka ward of Nagoya, central Japan. Ōsu is a historic area which has many small shops offering everything from Japanese traditional food to handicrafts. A large department store is OSU301. It is popular amongst fashionable young people as well. The Ōsu Street Performer's Festival is held every year in October. The highlight is the parade of the oiran. There are a number of temples and shrines and religious institutions in this area.