Szczeglacin [ʂt͡ʂɛˈɡlat͡ɕin] is a village in the administrative district of Gmina Korczew, within Siedlce County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) west of Korczew, 30 km (19 mi) north-east of Siedlce, and 109 km (68 mi) east of Warsaw.