Gmina Osieck is a rural gmina in Otwock County, Masovian Voivodeship, in east-central Poland. Its seat is the village of Osieck, which lies approximately 20 kilometres south-east of Otwock and 40 km south-east of Warsaw.
The gmina covers an area of 67.5 square kilometres, and as of 2006 its total population is 3,436.
The gmina contains part of the protected area called Masovian Landscape Park.
Wikipedia https://en.wikipedia.org/wiki/Gmina_Osieck
Official Website http://www.osieck.pl/
Coordinates 51°57'58.32" N 21°25'7.5" E
