| Vlacherna | |
| Name Local: | Βλαχέρνα |
| Type: | municipal unit |
| Periph: | Epirus |
| Periphunit: | Arta |
| Pop Municunit: | 2832 |
| Pop Community: | 386 |
| Population As Of: | 2021 |
| Area Municunit: | 76.1 |
| Coordinates: | 39.1667°N 21°W |
| Licence: | ΑΤ |
Vlacherna (Greek, Modern (1453-);: Βλαχέρνα) is a village and a former municipality in the Arta regional unit, Epirus, Greece. Since the 2011 local government reform it is part of the municipality Arta, of which it is a municipal unit.[1] The municipal unit has an area of 76.142 km2.[2] Population 2,832 (2021). The seat of the municipality was in Grammenitsa.