Kalša
| Kalša Kalsa | |
|---|---|
| Location of Kalša in the Košice Region Location of Kalša in Slovakia | |
| Coordinates: 48°37′N 21°32′E / 48.62°N 21.53°E | |
| Country | Slovakia | 
| Region | Košice Region | 
| District | Košice-okolie District | 
| First mentioned | 1270 | 
| Area | |
|  • Total | 4.63 km2 (1.79 sq mi) | 
| Elevation | 200 m (700 ft) | 
| Population  (2021) | |
|  • Total | 736 | 
| Time zone | UTC+1 (CET) | 
| • Summer (DST) | UTC+2 (CEST) | 
| Postal code | 441 8 | 
| Area code | +421 55 | 
| Car plate | KS | 
| Website | www | 
Kalša (Hungarian: Kalsa) is a village and municipality in Košice-okolie District in the Košice Region of eastern Slovakia.