(21 May 1863 - 23 December 1893) was a Norwegian painter, known for his paintings of his native Lofoten. He principally painted memorable scenes of the everyday life of the local fishermen.
Gunnar Berg was born on Svinøya in Svolvær on Lofoten, Nordland County, Norway. He was the oldest of 12 siblings born to a landlord and merchant, Lars Thodal Walnum Berg (1830-1903) and Lovise Johnsen (1842-1921). From 1875-81, he attended Cathedral School in Trondheim, and also took private lessons in drawing and painting by the artist H. J. Johannessen. He later attended a trade school in Bergen. He was first employed as a merchant. He later studied to became an artist.