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.
This article about a glacier in Spitsbergen is a stub.