Biszewo [biˈʂɛvɔ] is a village in the administrative district of Gmina Grodzisk, within Siemiatycze County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 7 kilometres (4 mi) south-east of Grodzisk, 14 km (9 mi) north of Siemiatycze, and 68 km (42 mi) south of the regional capital Białystok.