Mieleszynek [mjɛlɛˈʂɨnɛk] is a village in the administrative district of Gmina Wieruszów, within Wieruszów County, Łódź Voivodeship, in central Poland. It lies approximately 6 kilometres (4 mi) south-east of Wieruszów and 105 km (65 mi) south-west of the regional capital Łódź.