| Promachonas Προμαχώνας | |
|---|---|
| Coordinates: 41°22′N 23°22′E / 41.367°N 23.367°ECoordinates: 41°22′N 23°22′E / 41.367°N 23.367°E | |
| Country | Greece | 
| Administrative region | Central Macedonia | 
| Regional unit | Serres | 
| Municipality | Sintiki | 
| • Municipal unit | 42.2 km2 (16.3 sq mi) | 
| Elevation | 80 m (260 ft) | 
| Population (2011) | |
| • Municipal unit | 140 | 
| • Municipal unit density | 3.3/km2 (8.6/sq mi) | 
| Time zone | EET (UTC+2) | 
| • Summer (DST) | EEST (UTC+3) | 
| Vehicle registration | ΕΡ | 
Promachonas (Greek: Προμαχώνας, Bulgarian: Драготин, Dragotin) is a village and a former community in the Serres regional unit, Greece. Since the 2011 local government reform it is part of the municipality Sintiki, of which it is a municipal unit. The municipal unit has an area of 42.212 km2. Population 140 (2011). A major border crossing with Bulgaria is located here. The Bulgarian town opposite Promachonas is Kulata.
Promachonas-Topolnica is an important Late Neolithic settlement and cult site which straddles the Greek Bulgarian frontier a few kilometers from the community of Promachonas.