Riddell as a surname may refer to:
Riddell baronets
Henry Scott Riddell (1798–1870), Scottish poet and songwriter
Marc Dillon Riddell (born 1974), Canadian broadcast journalist
Archibald Riddell (1864–1912), farmer and political figure in Saskatchewan
Alan Riddell, bilingual labour relations lawyer
Arthur George Riddell (1836–1907), Roman Catholic Bishop of Northampton
Campbell Drummond Riddell (1796–1858), Australian Colonial public servant
Carol Anne Riddell, education reporter and co-anchor for WNBC-TV news
Charlotte Riddell (1832–1906), writers of the Victorian period
Chris Riddell (born 1962), British illustrator, cartoonist and writer of children's books
Clay Riddell (born c. 1930), founder, president and CEO of Paramount Resources
Derek Riddell (born 1967), Scottish television actor
Don Riddell (born 1972), English news anchor and sports journalist
Elizabeth Riddell (1910–1998), Australian poet and journalist
Gary Riddell (1966–1989), Scottish footballer (Dunfermline Athletic)
George Riddell, 1st Baron Riddell (1865–1934), British solicitor, newspaper proprietor and public servant
George W. Riddell, Pinkerton labor spy
Hannah Riddell (1855–1932), an English woman who devoted her life to the salvation of Hansen's disease patients in Japan
James Riddell (disambiguation), multiple people
Jim Riddell, New Zealand rugby league player
John Riddell (disambiguation), multiple people
Mark Riddell (born 1981), Australian former professional rugby league footballer
Mike Riddell (born 1953), Dunedin, New Zealand-based writer
Neil Riddell (born 1947), former English cricketer
Norman Riddell (1887–1918), English footballer
Peter Riddell, CBE PC is a British journalist and author
Rachel Riddell (born 1984), Canadian water polo goaltender
Ray Riddell (born 1919), Australian rules footballer
Richard Riddell, American lighting designer
Robert Riddell (1755–1794), Laird of Friar's Carse, near Dumfries, Scotland, and a friend of Robert Burns
Victor Riddell (1905–1976), English cricketer
Walter Alexander Riddell (1881–1963), Canadian civil servant, diplomat and Canadian Advisory Officer to the League of Nations
William Riddell (1807–1847), Roman Catholic bishop
William Renwick Riddell (1852–1945), Canadian lawyer, judge, and historian
