| Koromilia | |
| Type: | community |
| Caption Skyline: | Ladopotamos river |
| Coordinates: | 40.5356°N 21.1822°W |
| Periph: | Western Macedonia |
| Periphunit: | Kastoria |
| Municipality: | Kastoria |
| Municunit: | Agia Triada |
| Population As Of: | 2021 |
| Population: | 308 |
| Georegion: | Macedonia |
Koromilia (Greek, Modern (1453-);: Κορομηλιά, before 1928: Σλίβενη – Sliveni[1]) is a village in Kastoria Regional Unit, Macedonia, Greece.
It is famous in this region for its natural water springs. In the 19th century, Koromilia had an Albanian Muslim population. It was known as Sliveni among the Bulgarians of the surrounding villages.[2]
The Greek census (1920) recorded 430 people in the village and in 1923 there were 460 inhabitants (or 60 families) who were Muslim. Following the Greek–Turkish population exchange, in Sliveni there were refugee families from East Thrace (2), Asia Minor (5) and Pontus (74) in 1926. The Greek census (1928) recorded 315 inhabitants. In 1928 there were 80 refugee families (337 people).[3]