Hjalmar Hjorth Boyesen (23 September 1848 - 4 October 1895) was a Norwegian-American author and college professor. He is best remembered for his novel Gunnar: A Tale of Norse Life, which is generally considered to have been the first novel by a Norwegian immigrant in America. Boyesen migrated to the United States during 1869 and initially became assistant editor of Fremad, a Norwegian language weekly published in Chicago. His scholarly works included Goethe and Schiller, Essays on German Literature, A Commentary on the Works of Henrik Ibsen and Essays on Scandinavian Literature.