Alderton is an English locational name from any of the various places so called, although they do not share the same derivations.

Notable people with the surname include: Charles Alderton, the creator of Dr Pepper soft drink David Alderton (born 1956), English writer Dolly Alderton, British writer Gene Alderton (1934–1992), American football player Jimmy Alderton (1924–1998), English footballer John Alderton (born 1940), English actor John Alderton (American football) (1931–2013), American football player Lisle Alderton (1888–1969), New Zealand naval officer Terry Alderton (born 1970), English comedian