Usherbreen is a glacier in Sabine Land at Spitsbergen, Svalbard. It has a length of about 9.5 kilometers, and is located between Kroghfjellet and Domen. Usherbreen is a tributary glacier to Nordmannsfonna, and debouches towards Storfjorden. It is named after Scottish businessman Thomas Leslie Usher.
Coordinates: 78°15′36″N 18°48′00″E / 78.2600°N 18.8000°E