| Osina | |
| Subdivision Type: | Country |
| Settlement Type: | Village |
| Subdivision Type1: | Province (Oblast) |
| Subdivision Type2: | Municipality (Obshtina) |
| Subdivision Name2: | Satovcha |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Pushpin Map: | Bulgaria |
| Pushpin Map Caption: | Location of Osina |
| Leader Title: | Mayor |
| Leader Name: | Slavcho Hadzhiev |
| Leader Party: | CEDB |
| Government Footnotes: | [1] |
| Postal Code Type: | Postal Code |
| Subdivision Name1: | Blagoevgrad |
| Native Name: | Осина |
| Population Total: | 599 |
| Population Footnotes: | [2] |
| Population As Of: | 2010-12-15 |
| Elevation M: | 1199 |
| Area Total Km2: | 25.543 |
| Postal Code: | 2953 |
| Area Code: | 07544 |
| Registration Plate: | E |
| Coordinates: | 41.6333°N 29°W |
Osina (Bulgarian: Осина, old version: Usina) is a village in Southwestern Bulgaria. It is located in the Satovcha Municipality, Blagoevgrad Province.
The village of Osina is located in the Western Rhodope Mountains. It belongs to the Chech region.
The village was founded some time in the beginning of the 15th century when shepherds from the village of Kochan moved to the place where they had their dairies to avoid getting infected with plague. At a later time the village saw more refugees from the area around Serres but it is not known when and under what circumstances it happened.
In 1873 Osina (Oussina) had male population of 150 Pomaks and 50 houses.[3] According to Vasil Kanchov, in 1900 Osina (Усина) was populated by 250 Bulgarian Muslims[4] According to Stephan Verkovic at the end of the 19th century the village had male population of 173 Pomaks and 50 houses.[5]
The population is Muslim and consists of Pomaks.