Jastrzębniki [jastʂɛmbˈniki] is a village in the administrative district of Gmina Opalenica, within Nowy Tomyśl County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 6 kilometres (4 mi) north-west of Opalenica, 15 km (9 mi) east of Nowy Tomyśl, and 40 km (25 mi) west of the regional capital Poznań.