Agersø
| Agersø Mølle, standing on a small hill near the harbour | |
| Geography | |
|---|---|
| Location | Great Belt | 
| Coordinates | 55°12′N 11°12′E / 55.200°N 11.200°E | 
| Area | 6.84 km2 (2.64 sq mi) | 
| Administration | |
| Region | Region Zealand | 
| Municipality | Slagelse Municipality | 
| Demographics | |
| Population | 195 (2024) | 
| Pop. density | 28.51/km2 (73.84/sq mi) | 
Agersø is a Danish island in the Great Belt close to Zealand. The island covers an area of 6.84 km2 and has 195 inhabitants (2024).