was a town located in Imizu District, Toyama Prefecture, Japan. In 2003, the town had an estimated population of 32,770 and a population density of . The total area was . On November 1, 2005, Kosugi, along with the city of Shinminato, the towns of Daimon and Ōshima, the village of Shimo (all from Imizu District), was merged to create the city of Imizu and no longer exists as an independent municipality. Dissolved municipalities of Toyama Prefecture Imizu, Toyama