Boruja Kościelna [bɔˈruja kɔɕˈt͡ɕɛlna] is a village in the administrative district of Gmina Nowy Tomyśl, within Nowy Tomyśl County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 6 kilometres (4 mi) south of Nowy Tomyśl and 56 km (35 mi) west of the regional capital Poznań.