Shizunai(静内町,Shizunai-chō) was a town located in Shizunai District, Hidaka Subprefecture, Hokkaido, Japan.

As of 2004, the town had an estimated population of 22,581 and a density of 28.17 persons per km². The total area was 801.51 km².

On March 31, 2006, Shizunai was merged with the town of Mitsuishi (from Mitsuishi District) to create the new town of Shinhidaka (in the newly created Hidaka District).