Claes Annerstedt

Claes Annerstedt (7 June 1839 – 20 November 1927) was a Swedish historian and librarian.

Annerstedt became doctor of philosophy in 1869 and associate professor the same year. Between 1883 and 1904 he was head librarian (in essence the director of the whole library) at Uppsala University Library and he wrote several lauded works about the history of the library. In 1901 he became a member of the Swedish Academy and in 1917 he was awarded an honorary doctorate in theology at Uppsala. He served as an elected local politician in Uppsala between 1883 and 1907.