| Type: | commune |
| County: | Covasna |
| Official Name: | Belin |
| Other Name: | Bölön |
| Leader Name: | Imre Sikó[1] |
| Leader Party: | UDMR |
| Term: | 2020 - 2024 |
| Coordinates: | 45.9333°N 59°W |
| Elevation: | 485 |
| Area Total: | 70.7 |
| Population Total: | auto |
| Postal Code: | 527030 |
| Area Code: | +(40) x67 |
Belin (hu|Bölön, Hungarian pronunciation: NaNöNaNö) is a commune in Covasna County, Transylvania, Romania composed of two villages: Belin and Belin-Vale (Bölönpatak).
Belin has a relative Roma majority. At the 2021 census, it had a population of 3,181; of those, 38.98% were Roma, 29.27% Romanians, and 27.32% Székely Hungarians.[2] At the 2011 census, there were 2,859 inhabitants; 46.9% of those were Roma, 36.7% Hungarians, and 13.7% Romanians.
In 2002, 33.4% of inhabitants were Pentecostal, 30.2% Unitarian, 19.8% Romanian Orthodox, 9.7% Reformed, 3.1% belonged to another religion, 1.3% had no religion, and 1.1% were Roman Catholic.