Jack Diamond
Jack Diamond may refer to:
- Jack Diamond (architect) (born 1932), Canadian architect
- Jack Diamond (Canadian businessman) (1909–2001), Canadian businessman and philanthropist
- Jack Diamond (gangster) (1897–1931), Irish-American gangster in Philadelphia and New York City during the Prohibition era
- Jack Diamond (radio personality), American radio personality
- Jack Diamond (comedy entertainer) (born 1941), British comedy entertainer
See also
- Diamond Jack (disambiguation)
- Jack of Diamonds (disambiguation)
- John Diamond (disambiguation)