Gruszki [ˈɡruʂki], (Lithuanian: Gruškos), is a village in the administrative district of Gmina Płaska, within Augustów County, Podlaskie Voivodeship, in north-eastern Poland, close to the border with Belarus. It lies approximately 13 kilometres (8 mi) south-east of Płaska, 30 km (19 mi) east of Augustów, and 84 km (52 mi) north of the regional capital Białystok.