| Type: | village |
| Province: | Edirne |
| District: | Keşan |
| Mecidiye | |
| Population Total: | 840 |
| Population As Of: | 2022 |
| Coordinates: | 40.6°N 58°W |
| Elevation M: | 32 |
| Postal Code: | 22910 |
| Area Code: | 0284 |
Mecidiye (formerly: Köseatlı) is a village in Keşan District of Edirne Province, Turkey.[1] Its population is 840 (2022).[2] Mecidiye is close to the Gulf of Saros (Aegean Sea). The distance to Keşan is . The settlement was founded by the Muslim refugees of the Russo-Turkish War (1877-1878). Before the 2013 reorganisation, it was a town (belde).[3] Major economic activities of the town are fishing, beekeeping and farming. Tourism is also promising.[4]