Olszak, West Pomeranian Voivodeship

Olszak (Dreikathen) is a settlement in the administrative district of Gmina Świeszyno, within Koszalin County, West Pomeranian Voivodeship, in north-western Poland. It lies approximately 3 km south-east of Świeszyno, 9 km south of Koszalin, and 132 km north-east of the regional capital Szczecin.

For the history of the region, see History of Pomerania.

The settlement has a population of 26.