Sydney Dodd, FRCVS (c. 1874 – 20 October 1926), was a British veterinary surgeon and scientist. He contributed to the development of bacteriology and protozoology in England, South Africa and Australia. Dodd established a research station in Queensland that was to become the Animal Research Institute, and he was the first lecturer in veterinary bacteriology at the University of Sydney. He became one of the foremost bacteriologists in Australia.