Øyvind Anker (13 July 1904 – 30 December 1989) was a Norwegian librarian.
He was born in Frankfurt am Main as a son of engineer Nils Botvid Anker (1878–1943) and artist and pianist Gudrun Nilssen (1875–1958). He grew up in Vestre Aker and Lillehammer. He was a brother of Synnøve Anker Aurdal, and through her a brother-in-law of Ludvig Eikaas. Through another sister Ella he was a brother-in-law of Frede Castberg. He was a great-grandson of Peter Martin Anker, grandson of Herman Anker, nephew of Katti Anker Møller (and her husband Kai Møller) and Ella Anker, grandnephew of Nils Anker, Christian August Anker and Dikka Møller, and a first cousin of Peter Martin Anker and Tove Mohr.
In March 1933 he married pianist Eva Høst (1908–1968).
He finished his secondary education in 1923, attended the Norwegian Military Academy for one year before studying at the Royal Frederick University. He graduated with the cand.philol. degree in Norwegian in 1931, with the master's thesis Bjørnson og Grundtvig inntil 1872. He had been hired at the University Library of Oslo already in 1929, and continued working there after graduating. From 1936 he was the manager of the Norwegian National Music Collection, but on 20 August 1943 he was arrested by Nazi Germans as a part of World War II. He was imprisoned in the prisoner-of-war camps Oflag XXI-C and Oflag III-A until the camps were liberated.