- Sydney Smith (1771-1845), clergyman and wit (WorldCat)
- Sydney Smith (1839-1889), composer (WorldCat)
- Sir Sydney Smith (1883-1969), forensic pathologist (WorldCat)
- Sydney Smith (b. 1907), author of West of Scotland Rambles
- Sydney Smith (b. 1912), author of Wings Day
6. Sydney Talbot Smith, History of the Tests (not Teats)
