Gmina Wijewo is a rural gmina (administrative district) in Leszno County, Greater Poland Voivodeship, in west-central Poland. Its seat is the village of Wijewo, which lies approximately 27 kilometres (17 mi) west of Leszno and 73 km (45 mi) south-west of the regional capital Poznań.
The gmina covers an area of 61.37 square kilometres (23.7 sq mi), and as of 2006 its total population was 3,463.