Korytnica [kɔrɨtˈnit͡sa] is a village in the administrative district of Gmina Raszków, within Ostrów Wielkopolski County, Greater Poland Voivodeship, in west-central Poland. It lies approximately 6 kilometres (4 mi) north of Raszków, 13 km (8 mi) north of Ostrów Wielkopolski, and 90 km (56 mi) south-east of the regional capital Poznań.