| Kuromatsunai | |||
| Native Name Lang: | ja | ||
| Settlement Type: | Town | ||
| Seal Type: | Emblem | ||
| Pushpin Map: | Japan | ||
| Pushpin Map Caption: | Location in Japan | ||
| Coordinates: | 42.6678°N 140.3075°W | ||
| Subdivision Type: | Country | ||
| Subdivision Name: | Japan | ||
| Subdivision Type1: | Region | ||
| Subdivision Name1: | Hokkaido | ||
| Subdivision Type2: | Prefecture | ||
| Subdivision Name2: | Hokkaido (Shiribeshi Subprefecture) | ||
| Subdivision Type3: | District | ||
| Subdivision Name3: | Suttsu | ||
| Extinct Title: | Now part of | ||
| Leader Title: | Mayor | ||
| Leader Name: | Mitsuru Kamada | ||
| Leader Title1: | Vice Mayor | ||
| Unit Pref: | Metric | ||
| Area Total Km2: | 345.65 | ||
| Population Total: | 2,739 | ||
| Population As Of: | 24 May 2020 | ||
| Population Density Km2: | auto | ||
| Timezone1: | JST | ||
| Utc Offset1: | +09:00 | ||
| Blank Name Sec1: | City hall address | ||
| Blank Info Sec1: | 302-1 Kuromatsunai, Kuromatsunai, Suttsu-gun, Hokkaido 048-0192 | ||
| Blank Name Sec2: | Climate | ||
| Blank Info Sec2: | Dfb | ||
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is a town located in Shiribeshi, Hokkaido, Japan.
As of 24 May 2020 the town had an estimated population of 2,739, and a density of 7.2 persons per km2. The total area of the town is 345.65 km2.
Kuromatsunai is located in the southern part of Shiribeshi Subprefecture and while close to both the Sea of Japan and the Pacific Ocean, the town itself has no coastline. The Shubuto River and Kuromatsunai River flow through Kuromatsunai.
The town, being the northernmost area of Japan in which beech trees grow naturally, has had the beech tree designated a natural treasure.