Ernestynowo [ɛrnɛstɨˈnɔvɔ] is a settlement in the administrative district of Gmina Zbąszyń, within Nowy Tomyśl County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 5 kilometres (3 mi) north-east of Zbąszyń, 13 km (8 mi) west of Nowy Tomyśl, and 67 km (42 mi) west of the regional capital Poznań.