Dłużyna [dwuˈʐɨna] is a village in the administrative district of Gmina Włoszakowice, within Leszno County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 5 kilometres (3 mi) north of Włoszakowice, 19 km (12 mi) north-west of Leszno, and 61 km (38 mi) south-west of the regional capital Poznań.