Otto Annkjell Hageberg (born 12 July 1936) is a Norwegian philologist.
He was born in Fitjar. He was hired at the University of Oslo in 1964, and was promoted to professor in 1985. He is a member of the Norwegian Academy of Science and Letters. Notable releases include Frå Camilla Collett til Dag Solstad. Spenningsmønster i litterære tekstar (1980) and På spor etter meining. Essay om samtidslitteratur og om litterær tradisjon (1994), and he has biographed Olav Duun and Ragnvald Skrede.[1] He retired as a professor in 2006.