Polusin [pɔˈluɕin] is a village in the administrative district of Gmina Świnice Warckie, within Łęczyca County, Łódź Voivodeship, in central Poland. It lies approximately 4 kilometres (2 mi) north-west of Świnice Warckie, 21 km (13 mi) west of Łęczyca, and 50 km (31 mi) north-west of the regional capital Łódź.