Trojanowo [trɔjaˈnɔvɔ] is a village in the administrative district of Gmina Murowana Goślina, within Poznań County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 4 kilometres (2 mi) north of Murowana Goślina (on the main road to Wągrowiec) and 24 km (15 mi) north of the regional capital Poznań.