Gmina Oporów is a rural gmina (administrative district) in Kutno County, Łódź Voivodeship, in central Poland. Its seat is the village of Oporów, which lies 14 kilometres (9 mi) east of Kutno and 53 km (33 mi) north of the regional capital Łódź.
Spanning an area of 67.7 square kilometres (26.1 sq mi), as of 2006 the total population of the gmina was 2,753.