| Mamousia | |
| Name Local: | Μαμουσιά |
| Type: | community |
| Caption Skyline: | Mamousia, 2008 |
| Coordinates: | 38.15°N 30°W |
| Periph: | West Greece |
| Periphunit: | Achaea |
| Municipality: | Aigialeia |
| Municunit: | Diakopto |
| Population As Of: | 2021 |
| Pop Community: | 195 |
Mamousia (Greek, Modern (1453-);: Μαμουσιά) is a village and a community in the municipal unit of Diakopto, Achaea, Greece. It is 6 km southwest of Diakopto, on the west side of the Vouraikos gorge. The community includes the villages Derveni and Stavria.
| Year | Village population | Community population | |
|---|---|---|---|
| 1981 | - | 382 | |
| 1991 | 232 | 352 | |
| 2001 | 177 | 295 | |
| 2011 | 214 | 355 | |
| 2021 | 127 | 195 |
The ancient city Boura was located near present Mamousia. The city had an ancient theatre most of which has yet to be excavated; several artifacts are on display at the Aigio Archeological Museum. Boura was destroyed in an earthquake in 373 BC. Mamousia suffered damage from the 2007 Greek forest fires.