Mierków [ˈmjɛrkuf] is a village in the administrative district of Gmina Lubsko, within Żary County, Lubusz Voivodeship, in western Poland. It lies approximately 5 kilometres (3 mi) north-west of Lubsko, 25 km (16 mi) north-west of Żary, and 44 km (27 mi) west of Zielona Góra.