Samarinbreen is a glacier in Sørkapp Land at Spitsbergen, Svalbard.
It has a length of 14 mi (23 km), and is the northern branch of Mefonna.
The glacier debouches into Samarinvågen, a southern bay of the fjord Hornsund.
The glacier is named after Samarin, the name of a craftsman, fisherman and member of Arctic expeditions between 1899 and 1902.
This article about a glacier in Spitsbergen is a stub.