| Sympoliteia | |
| Name Local: | Συμπολιτεία |
| Type: | municipal unit |
| Periph: | West Greece |
| Periphunit: | Achaea |
| Pop Municunit: | 6162 |
| Population As Of: | 2021 |
| Area Municunit: | 85.505 |
| Elevation: | 174 |
| Coordinates: | 38.2667°N 25°W |
| Postal Code: | 251 00 |
| Area Code: | 2691 |
| Licence: | ΑΧ |
Sympoliteia (Greek, Modern (1453-);: Συμπολιτεία) is a former municipality in Achaea, West Greece, Greece. Since the 2011 local government reform it is part of the municipality Aigialeia, of which it is a municipal unit.[1] The municipal unit has an area of 85.505 km2.[2] Population 6,162 (2021). The seat of the municipality was in Rododafni.