Giby (; ) is a village in Sejny County, Podlaskie Voivodeship, in north-eastern Poland, close to the borders with Belarus and Lithuania. It is the seat of the gmina (administrative district) called Gmina Giby.
The village was established in 1594.
Today's Catholic church of St. Anne (1912) originally served Old Believers in Pogorzelec village, from where it was moved to Giby in 1982.