Kotuń is a village in Siedlce County, Masovian Voivodeship, in east-central Poland. It is the seat of the gmina (administrative district) called Gmina Kotuń. It lies approximately west of Siedlce and east of Warsaw. The village has a population of 2220. References Villages in Siedlce County Lublin Governorate Lublin Voivodeship (1919–1939)