Gmina Sobolew is a rural gmina (administrative district) in Garwolin County, Masovian Voivodeship, in east-central Poland. Its seat is the village of Sobolew, which lies approximately 18 kilometres (11 mi)
east of Garwolin and 71 km (44 mi) south-east of Warsaw.
The gmina covers an area of 94.83 square kilometres (36.6 sq mi), and as of 2006 its total population was 8,312.
Gmina Sobolew contains the villages and settlements of:
Kaleń Drugi, Kaleń Pierwszy
Gmina Sobolew is bordered by the gminas of Górzno, Łaskarzew, Maciejowice, Trojanów and Żelechów.