Mitsuishi District, Hokkaido

Mitsuishi (三石郡, Mitsuishi-gun) was a district located in Hidaka Subprefecture, Hokkaido, Japan.

Mitsuishi District in Hidaka Subprefecture before merging with Shizuani District in 2006.

As of 2004, the district had an estimated population of 4,950 and a density of 14.30 persons per km². The total area was 346.23 km².

On March 31, 2006, Mitsuishi District merged with Shizunai District to create the new Hidaka District. Mitsuishi District and Shizunai District were both dissolved with this merger.

Towns and villages

• Mitsuishi