| Hiyama Subprefecture | |
| Native Name Lang: | ja |
| Official Name: | Hiyama-shinkō-kyoku |
| Seat Type: | Capital |
| Subdivision Type: | Prefecture |
| Subdivision Name: | Hokkaido |
| Area Total Km2: | 2629.88 |
| Population Total: | 46999 |
| Population As Of: | March 2009 |
| Population Density Km2: | auto |
| Website: | http://www.hiyama.pref.hokkaido.lg.jp/ |
is a subprefecture of Hokkaido Prefecture, Japan located on the Oshima Peninsula on the Sea of Japan side. It includes Okushiri Island. It was established in 1897.
| Name | Area (km2) | Population | Pop. Density | District | Type | Map | ||
|---|---|---|---|---|---|---|---|---|
| Rōmaji | Kanji | |||||||
| Assabu | 厚沢部町 | 460.58 | 3,884 | 8.43 | Hiyama District | Town | ||
| Esashi (capital) | 江差町 | 109.57 | 8,117 | 74.08 | Hiyama District | Town | ||
| Imakane | 今金町 | 568.14 | 5,575 | 9.81 | Setana District | Town | ||
| Kaminokuni | 上ノ国町 | 547.58 | 5,161 | 9.43 | Hiyama District | Town | ||
| Okushiri | 奥尻町 | 142.98 | 2,812 | 19.67 | Okushiri District | Town | ||
| Otobe | 乙部町 | 162.55 | 3,925 | 24.15 | Nishi District | Town | ||
| Setana | せたな町 | 638.67 | 8,501 | 13.31 | Kudō District | Town | ||