Ciemniewo [t͡ɕɛmˈɲɛvɔ] is a village in the administrative district of Gmina Czerwonka, within Maków County, Masovian Voivodeship, in east-central Poland. It lies approximately 5 kilometres (3 mi) south-west of Czerwonka, 5 km (3 mi) east of Maków Mazowiecki, and 73 km (45 mi) north of Warsaw.