Kasos
| Κάσος Kasos | |
|---|---|
| Old Harbor of Fri | |
| Coordinates: 35°23′51″N 26°55′30″E / 35.39750°N 26.92500°E | |
| Country | Greece | 
| Administrative region | South Aegean | 
| Regional unit | Karpathos-Kasos | 
| Area | |
|  • Municipality | 69.464 km2 (26.820 sq mi) | 
| Highest elevation | 550 m (1,800 ft) | 
| Lowest elevation | 0 m (0 ft) | 
| Population  (2021) | |
|  • Municipality | 1,223 | 
| • Density | 18/km2 (46/sq mi) | 
| Time zone | UTC+2 (EET) | 
| • Summer (DST) | UTC+3 (EEST) | 
| Postal code | 85800 | 
| Area code(s) | 22450 | 
| Vehicle registration | ΚΧ, ΡΟ, ΡΚ | 
| Website | www.kasos.gr | 
Kasos (/ˈkɑːsoʊs/; Greek: Κάσος, pronounced [ˈka̠so̞s]), also Casos, is a Greek island municipality in the Dodecanese. It is the southernmost island in the Aegean Sea, and is part of the regional unit Karpathos-Kasos. The capital of the island is Fri. As of 2021, its population was 1,223.