Hiyama (檜山郡, Hiyama-gun) is a district located in Hiyama Subprefecture, Hokkaido, Japan.
As of 2004, the district has an estimated population of 21,896 and a density of 19.59 persons per km2. The total area is 1,117.57 km2.
Towns and villages
- Assabu
- Esashi
- Kaminokuni
Notable place
- Katsuyama Date - A castle ruin, was listed as one of the National Historic Site and Continued 100 Fine Castles of Japan.
References

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