Tłoczewo [twɔˈt͡ʂɛvɔ] is a village in the administrative district of Gmina Nowe Piekuty, within Wysokie Mazowieckie County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 5 kilometres (3 mi) north-west of Nowe Piekuty, 11 km (7 mi) east of Wysokie Mazowieckie, and 43 km (27 mi) south-west of the regional capital Białystok.