Chełmienko [xɛu̯ˈmjɛnkɔ] is a settlement in the administrative district of Gmina Bierzwnik, within Choszczno County, West Pomeranian Voivodeship, in north-western Poland. It lies approximately 7 kilometres (4 mi) west of Bierzwnik, 20 km (12 mi) south-east of Choszczno, and 79 km (49 mi) south-east of the regional capital Szczecin.