Koźmin [ˈkɔʑmin] is a village in the administrative district of Gmina Brudzew, within Turek County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 5 kilometres (3 mi) east of Brudzew, 13 km (8 mi) north-east of Turek, and 125 km (78 mi) east of the regional capital Poznań.