Lewiczynek [lɛviˈt͡ʂɨnɛk] is a village in the administrative district of Gmina Miedzichowo, within Nowy Tomyśl County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 18 kilometres (11 mi) north-west of Nowy Tomyśl and 65 km (40 mi) west of the regional capital Poznań.

The village has an approximate population of 104.