Shimizu, Wakayama

 was a town located in Arida District, Wakayama Prefecture, Japan.
As of 2003, the town had an estimated population of 4,961 and a density of 25.32 persons per km². The total area was 195.96 km².
On January 1, 2006, Shimizu, along with the towns of Kanaya and Kibi (all from Arida District), was merged to create the town of Aridagawa.