| Agia Eirini | |
| Name Local: | Άγια Ειρήνη |
| Type: | community |
| Coordinates: | 38.1217°N 65.1°W |
| Periph: | Ionian Islands |
| Periphunit: | Cephalonia |
| Municipality: | Argostoli |
| Municunit: | Eleios-Pronnoi |
| Population As Of: | 2021 |
| Population: | 294 |
Agia Eirini (Greek, Modern (1453-);: Άγια Ειρήνη, for Saint Irene) is a community in the municipal unit of Eleios-Pronnoi in the southeastern part of the island of Cephalonia, Greece. It is situated in an inland valley, at about 90 m elevation. It is 2 km south of Tzanata, 3 km southeast of Xenopoulo, 3 km north of Pastra and 4 km southwest of Poros. It is located on the road connecting Poros with Argostoli.
| Year | Population | |
|---|---|---|
| 1981 | 284 | |
| 1991 | 306 | |
| 2001 | 363 | |
| 2011 | 314 | |
| 2021 | 294 |