Niemieryczew [ɲɛmjɛˈrɨt͡ʂɛf] is a village in the administrative district of Gmina Puszcza Mariańska, within Żyrardów County, Masovian Voivodeship, in east-central Poland. It lies approximately 7 kilometres (4 mi) south-east of Puszcza Mariańska, 14 km (9 mi) south of Żyrardów, and 52 km (32 mi) south-west of Warsaw.