| Kalsk | |
| Settlement Type: | Village |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | Lubusz |
| Subdivision Type2: | County |
| Subdivision Name2: | Zielona Góra |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Sulechów |
| Coordinates: | 52.1167°N 51°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | right |
| Population Total: | 790 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Registration Plate: | FZI |
Kalsk is a village in the administrative district of Gmina Sulechów, within Zielona Góra County, Lubusz Voivodeship, in western Poland.[1] It lies approximately 4km (02miles) north of Sulechów and 210NaN0 north of Zielona Góra.