Krzeczkowo-Gromadzyn [kʂɛt͡ʂˈkɔvɔ ɡrɔˈmad͡zɨn] is a village in the administrative district of Gmina Czyżew-Osada, within Wysokie Mazowieckie County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 4 kilometres (2 mi) north of Czyżew-Osada, 16 km (10 mi) south-west of Wysokie Mazowieckie, and 65 km (40 mi) south-west of the regional capital Białystok.