Gullybreen is a glacier in Albert I Land at Spitsbergen, Svalbard. It is located in the peninsula Hoelhalvøya, south of Magdalenefjorden. The glacier debouches into Gullybukta, a southern bay of Magdalenefjoirden.
Coordinates: 79°32′05″N 10°58′18″E / 79.5347°N 10.9717°E