Siecieminek [ɕɛt͡ɕɛˈminɛk] is a settlement in the administrative district of Gmina Sianów, within Koszalin County, West Pomeranian Voivodeship, in north-western Poland. It lies approximately 4 kilometres (2 mi) east of Sianów, 13 km (8 mi) north-east of Koszalin, and 148 km (92 mi) north-east of the regional capital Szczecin.