Gruzka [ˈɡruska] is a village in the administrative district of Gmina Kleszczele, within Hajnówka County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus.

[1] According to the 1921 census, the village was inhabited by 76 people, among whom 73 Orthodox, and 3 Mosaic.

At the same time, 73 inhabitants declared Belarusian nationality, and 3 Jewish.

There were 13 residential buildings in the village.

This Hajnówka County location article is a stub.