Gumowo [ɡuˈmɔvɔ] is a village in the administrative district of Gmina Stary Lubotyń, within Ostrów Mazowiecka County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 kilometres (2 mi) south-east of Stary Lubotyń, 14 km (9 mi) north of Ostrów Mazowiecka, and 101 km (63 mi) north-east of Warsaw.