| Official Name: | Mielagėnai |
| Settlement Type: | Town |
| Pushpin Map: | Lithuania |
| Pushpin Map Caption: | Location in Lithuania |
| Subdivision Name: |  Lithuania |
| Subdivision Type1: | County |
| Subdivision Name1: | Utena County |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Ignalina district municipality |
| Subdivision Type3: | Eldership |
| Subdivision Name3: | Mielagėnai eldership |
| Subdivision Type4: | Capital of |
| Subdivision Name4: | Mielagėnai eldership |
| Population As Of: | 2011 |
| Population Total: | 236 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Coordinates: | 55.2583°N 26.4389°W |
Mielagėnai is a town in Ignalina district municipality, in Utena County, southern Lithuania. According to the 2011 census, the town has a population of 236 people.[1] There is John the Baptist church, build at 1790.