Dmochy-Mrozy [ˈdmɔxɨ ˈmrɔzɨ] is a village in the administrative district of Gmina Czyżew-Osada, within Wysokie Mazowieckie County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 6 kilometres (4 mi) north-west of Czyżew-Osada, 20 km (12 mi) south-west of Wysokie Mazowieckie, and 69 km (43 mi) south-west of the regional capital Białystok.