Fritz Richard Schaudinn (19 September 1871 – 22 June 1906) was a German zoologist.

Born in Röseningken (now in Ozyorsky District) in the Province of Prussia, he co-discovered, with Erich Hoffmann in 1905, the causative agent of syphilis, Spirochaeta pallida (also known as Treponema pallidum).

Among Schaudinn's other contributions to medicine include his work in the field of amoebic dysentery, sleeping sickness and his confirmation of the work of Sir Ronald Ross and Giovanni Battista Grassi (1854–1925) in the field of malaria research.

He made noted contributions to zoology and was one of the developers of protozoology as an experimental science.

[2][3] Schaudinn died during his journey back to Germany from an International Medicine Meeting in Lisbon, when he underwent an urgent surgery aboard due to gastrointestinal amoebian abscesses.