Knyszyn-Cisówka [ˈknɨʂɨn t͡ɕiˈsufka] is a settlement in the administrative district of Gmina Knyszyn, within Mońki County, Podlaskie Voivodeship, in north-eastern Poland. It lies approximately 5 kilometres (3 mi) south-east of Knyszyn, 17 km (11 mi) south-east of Mońki, and 23 km (14 mi) north-west of the regional capital Białystok.