Sydney Allard (1910–1966), British Car Company Founder
Sydney Atkinson (1901–1977), South African Athlete
Sydney Barnes (1873–1967), English Cricketer
Sydney Brenner (born 1927), South African Biologist
Sydney Camm, (1893–1966), English Aeronautical Engineer
Sydney Chaplin (1885–1965), English Actor
Sydney Dacres (1805–1884), English Admiral
Sydney Earle Chaplin (1926–2009), American Actor
Sydney Fremantle (1867–1958), English Admiral
Sydney Greenstreet (1879–1954), English Actor
Sydney Grundy (1848–1914), English Dramatist
Sydney Gun-munro (1916–2007), Saint Vincent And The Grenadines Politician
Sydney Horler (1888–1954), British Novelist
Sydney J. Harris (1917–1986), American Journalist
Sydney J. Van Scyoc (born 1939), American Science Fiction Writer
Sydney Jacobson (1908–1988), British Journalist
Sydney Kentridge (born 1922), South African Lawyer And Judge
Sydney Lamb (born 1929), American Linguist
Sydney Laurence (1865–1940), American Painter
Sydney Mufamadi (born 1959), South African Politician
Sydney Newman (1917–1997), Canadian Film And Television Producer
Sydney Parkinson (1745–1771), Scottish Illustrator
Sydney Penny (born 1971), American Actress
Sydney Poitier (born 1973), American Actor
Sydney Pollack (1934–2008), American Film Actor
Sydney Possuelo (born 1940), Brazilian Explorer And Ethnographer
Sydney Ringer (1836–1910), British Pharmacologist
Sydney Schanberg (born 1934), American Journalist
Sydney Sekeramayi (born 1944), Zimbabwean Politician
Sydney Shoemaker (born 1931), American Philosopher
Sydney Silverman (1895–1968), British Politician
Sydney Skaife (1889–1976), South African Entomologist
Sydney Smirke (1798–1877), English Architect
Sydney Smith (1771–1845), English Writer
Sydney Taylor (1904–1978), American Author