Diomideia should not be confused with Islands of Diomedes.
| Diomideia | |
| Name Local: | Διομήδεια |
| Type: | community |
| Coordinates: | 41.09°N 24.902°W |
| Periph: | Eastern Macedonia and Thrace |
| Periphunit: | Xanthi |
| Municipality: | Abdera |
| Municunit: | Vistonida |
| Population As Of: | 2021 |
| Population: | 4583 |
Diomideia (el|Διομήδεια) is a settlement and a community in the Vistonida municipal unit of the Xanthi regional unit of Greece. According to the 2021 census, the population of Diomideia was 4,583 inhabitants.