Harald L. Tveterås

Harald Ludvig Tveterås (15 October 1904 – 30 June 1991) was a Norwegian librarian and non-fiction writer.

He was born in Stavanger to school inspector and politician Rasmus Tveteraas and Laurentze Mæle, and was a brother of printmaker Vilhelm Tveteraas. He was assigned with the University of Oslo Library for forty years, from 1929. From 1969 to 1974 he served as riksbibliotekar (National Librarian). Among his works are the first three volumes of Den norske bokhandels historie (1950-1986). He was decorated Knight, First Class of the Order of St. Olav in 1967.