Spandaryan Reservoir (also Spandarian) is a large man-made lake located southeast of Gorayk, in the municipality of Spandaryan, Syunik Province in Armenia.
It was built around 1980 in the Arpa River basin, reportedly connected to it by a 9-mile long tunnel. It reportedly has a breeding colony of Lesser kestrels, the only known in Armenia. It contains the Spandaryan Hydro Power Plant.
Spandaryan lake is one of the perfect places for fishing in Armenia.