The NSB Class 49, nicknamed Dovregubben ("the Dovre Giant"), locomotives were 2-8-4 steam locomotives used to pull heavy trains on the Dovre Line.

It is the largest type of steam locomotive in the history of the Norwegian State Railways.

Between 1935 and 1941 five engines were produced by Hamar & Thune, two by Krupp AG.

[1] In addition to the seven engines delivered, there were seven engines which were destroyed by a bombing raid during World War II while under construction in Germany, another four were under construction at Thune but were never completed.

The engines were retired from service during 1957, stored and finally written off on December 16, 1958, due to dieselization of the Dovre Line.