Rosnowo [rɔsˈnɔvɔ] is a village in the administrative district of Gmina Komorniki, within Poznań County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 9 kilometres (6 mi) north-east of Komorniki and 13 km (8 mi) south-west of the regional capital Poznań.

The village has an approximate population of 80.