Adeline Rittershaus (29 July 1876 – 6 September 1924) was a German philologist, a scholar in old Scandinavian literature, and champion for the equality of women. She earned her doctorate in 1898, at the University of Zurich, being one of the first women to do so at that institution, and acquired in 1902, as the first woman, a Venia legendi at the Faculty of Arts of the same university. Her most famous work is a collection of Icelandic folk tales.