| Roupaki | |
| Name Local: | Ρουπάκι |
| Type: | community |
| Periph: | West Greece |
| Periphunit: | Elis |
| Municipality: | Pineios |
| Municunit: | Gastouni |
| Pop Community: | 468 |
| Population As Of: | 2021 |
| Coordinates: | 37.8633°N 40.4°W |
| Postal Code: | 273 00 |
| Area Code: | 26220 |
| Elevation: | 30 |
Roupaki (Greek, Modern (1453-);: Ρουπάκι) is a community 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 Agia Mavra, 2 km west of Sosti, 2 km east of Koroivos, 6 km east of Gastouni and 8 km northwest of Amaliada.
| Year | Population | |
|---|---|---|
| 1981 | 372 | |
| 1991 | 423 | |
| 2001 | 591 | |
| 2011 | 543 | |
| 2021 | 468 |