Smolarnia [smɔˈlarɲa] is a village in the administrative district of Gmina Wiskitki, within Żyrardów County, Masovian Voivodeship, in east-central Poland. It lies approximately 9 kilometres (6 mi) south-west of Wiskitki, 10 km (6 mi) west of Żyrardów, and 52 km (32 mi) south-west of Warsaw.