Giants in the Earth is a novel by Norwegian-American author Ole Edvart Rølvaag. First published in Norwegian in two volumes in 1924 and 1925, it was published in English in 1927, translated by Rølvaag and author Lincoln Colcord (1883–1947).

Ole Edvart Rølvaag was a Norwegian-American novelist and professor who became well known for his writings regarding the Norwegian American immigrant experience. Ole Rolvaag is most frequently associated with Giants in the Earth, his award-winning, epic novel of Norwegian immigrant homesteaders in Dakota Territory.