Rudolf Köster
Rudolf Köster or Rudolf Koester is the name of the following people:
- Rudolf Köster (physician, 1870) (1870–1904), German psychiatrist
- Rudolf Köster (linguist) (1913 – after 1996), German linguist, linguist and local researcher
- Rudolf Köster (physician, 1921) (1921–2011), German dermatologist, social medicine specialist and author
- Rudolf Koester (Germanist) (born Rudolf Köster ; * 1936), German-American Germanist