Śleszynek [ɕlɛˈʂɨnɛk] is a village in the administrative district of Gmina Żychlin, within Kutno County, Łódź Voivodeship, in central Poland. It lies approximately 5 kilometres (3 mi) south-east of Żychlin, 21 km (13 mi) east of Kutno, and 51 km (32 mi) north of the regional capital Łódź.