Agia Eirini, Cephalonia
Agia Eirini 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 |
