Czechowizna [t͡ʂɛxɔˈvizna] is a village in the administrative district of Gmina Knyszyn, within Mońki County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 4 kilometres (2 mi) north-west of Knyszyn, 10 km (6 mi) south-east of Mońki, and 31 km (19 mi) north-west of the regional capital Białystok.