| Official Name: | Vosiūnai |
| Settlement Type: | Village |
| Pushpin Map: | Lithuania |
| Pushpin Label Position: | top |
| Pushpin Map Caption: | Location in Lithuania |
| Coordinates: | 55.305°N 26.82°W |
| Subdivision Name: |  Lithuania |
| Subdivision Type1: | County |
| Subdivision Name1: | Utena County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Ignalina District Municipality |
| Subdivision Type3: | Eldership |
| Subdivision Name3: | Didžiasalis eldership |
| Population As Of: | 2011 |
| Population Total: | 29 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Vosiūnai is a village in the eastern part of Ignalina district in Lithuania. According to the 2011 census, it had 29 residents. It is located east of Navikai, near the border with Belarus. The village is situated on the right bank of the river Dysna. The village has a wooden Blessed Virgin Mary Church (built in 1921).
Together with the neighboring Rimaldiškė, Vosiūnai is the easternmost village in Lithuania.