| Olszak | |
| Settlement Type: | Settlement |
| Total Type: | |
| Subdivision Type: | Country |
| Subdivision Type1: | Voivodeship |
| Subdivision Name1: | West Pomeranian |
| Subdivision Type2: | County |
| Subdivision Name2: | Koszalin |
| Subdivision Type3: | Gmina |
| Subdivision Name3: | Świeszyno |
| Coordinates: | 54.1094°N 16.2011°W |
| Pushpin Map: | Poland |
| Pushpin Label Position: | bottom |
| Population Total: | 26 |
Olszak (German: Dreikathen)[1] is a settlement in the administrative district of Gmina Świeszyno, within Koszalin County, West Pomeranian Voivodeship, in north-western Poland.[2] It lies approximately 3km (02miles) south-east of Świeszyno, 90NaN0 south of Koszalin, and 1320NaN0 north-east of the regional capital Szczecin.
For the history of the region, see History of Pomerania.
The settlement has a population of 26.