Trzeszczkowo [tʂɛʂt͡ʂˈkɔvɔ] is a village in the administrative district of Gmina Wyszki, within Bielsk County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 20 kilometres (12 mi) west of Bielsk Podlaski and 36 km (22 mi) south-west of the regional capital Białystok.