John Diamond may refer to:
- John Diamond (dancer) (1823–1857), Irish-American dancer
- John Diamond (journalist) (1953–2001), British broadcaster and journalist
- John Diamond, Baron Diamond (1907–2004), British Labour politician
- John Diamond, 1980 children's novel by author Leon Garfield
- Jon P. Diamond (born 1957), American entrepreneur
- John Diamond (doctor) (born 1934), American doctor
Famous quotes containing the words john and/or diamond:
“His spiritual life has been exaggerated by a chronic attack of mental gallstones.”
—Oliver St. John Gogarty (1878–1957)
“I really think that American gentlemen are the best after all, because kissing your hand may make you feel very very good but a diamond and a sapphire bracelet lasts forever.”
—Anita Loos (1893–1981)