Mirocin Średni is a village in the administrative district of Gmina Kożuchów, within Nowa Sól County, Lubusz Voivodeship, in western Poland. It lies approximately 5 kilometres (3 mi) west of Kożuchów, 14 km (9 mi) west of Nowa Sól, and 20 km (12 mi) south of Zielona Góra.