Sveigbreen is a glacier stream in Sabine Land at Spitsbergen, Svalbard. It has a length of about eleven kilometers, and extends the southern part of the ice cap Hellefonna, south of Kropotkinfjellet.[1] The glacier is one of the two main sources to the river Agardhelva, which flows through Agardhdalen towards Agardhbukta.[2]