Gmina Kórnik (Kórnik Commune) is an urban-rural gmina (administrative district) in Poznań County, Greater Poland Voivodeship, in west-central Poland. Its seat is the town of Kórnik, which lies approximately 22 kilometres (14 mi) south-east of the regional capital Poznań.
The gmina covers an area of 186.58 square kilometres (72.0 sq mi), and as of 2006 its total population is 17,585 (out of which the population of Kórnik amounts to 6,981, and the population of the rural part of the gmina is 10,604).
Apart from the town of Kórnik, Gmina Kórnik contains the villages and settlements of:
Gmina Kórnik is bordered by the city of Poznań and by the gminas of Kleszczewo, Mosina, Śrem, Środa Wielkopolska and Zaniemyśl.