Kolnowice [kɔlnɔˈvʲit͡sɛ] is a village in the administrative district of Gmina Biała, within Prudnik County, Opole Voivodeship, in south-western Poland. It lies approximately 6 kilometres (4 mi) west of Biała, 9 km (6 mi) north of Prudnik, and 39 km (24 mi) south-west of the regional capital Opole. Historically located in Upper Silesia, in the Prudnik Land.