Stare Kaczkowo [ˈstarɛ kat͡ʂˈkɔvɔ] is a village in the administrative district of Gmina Brok, within Ostrów Mazowiecka County, Masovian Voivodeship, in east-central Poland. It lies approximately 7 kilometres (4 mi) north-east of Brok, 8 km (5 mi) south of Ostrów Mazowiecka, and 86 km (53 mi) north-east of Warsaw.