Koźmin, Szamotuły County  Koźmin , German Koschmin, is a village in the administrative district of Gmina Obrzycko, within Szamotuły County, Greater Poland Voivodeship, in west-central Poland. It lies approximately south-west of Obrzycko, north-west of Szamotuły, and north-west of the regional capital Poznań.