Izdebki-Kosny [izˈdɛpki ˈkɔsnɨ] is a village in the administrative district of Gmina Zbuczyn, within Siedlce County, Masovian Voivodeship, in east-central Poland. It lies approximately 12 kilometres (7 mi) east of Zbuczyn, 24 km (15 mi) east of Siedlce, and 110 km (68 mi) east of Warsaw.