Koroivos
Koroivos is a village in the municipal unit of Gastouni, Elis, Greece. It is situated in a flat rural area, south of the river Pineios. It is 2 km southeast of Lefkochori, 2 km west of Roupaki, 2 km southwest of Agia Mavra and 4 km east of Gastouni. The village was named after Coroebus of Elis, one of the winners of the first Ancient Olympic Games.
| Year | Population |
| 1981 | 369 |
| 1991 | 377 |
| 2001 | 363 |
| 2011 | 316 |
