Tomaszew [tɔˈmaʂɛf] is a village in the administrative district of Gmina Wiskitki, within Żyrardów County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) south-west of Wiskitki, 5 km (3 mi) west of Żyrardów, and 48 km (30 mi) south-west of Warsaw.