Hashimoto, Wakayama

 is a city located in Wakayama Prefecture, Japan. The city was founded on January 1, 1955. As of February 2021, the city has an estimated population of 62,941 and a population density of 480 persons per km². The total area is 130.31 km².
On March 1, 2006, the town of Kōyaguchi (from Ito District) was merged into Hashimoto.
Its sister city is Rohnert Park, California.