Rumianek [ruˈmjanɛk] is a village in the administrative district of Gmina Tarnowo Podgórne, within Poznań County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 4 kilometres (2 mi) south-west of Tarnowo Podgórne and 22 km (14 mi) west of the regional capital Poznań.