Delaney is an Irish surname derived from the Gaelic Ó Dubhsláine, Dubh meaning black and Slaine for the River Slaine (Slaney). DeLaney is also of Norman origin.
- Arthur K. Delaney (1841-1905), first mayor of Juneau, Alaska
- Cameron Delaney, Australian backstroke swimmer
- Colin Delaney, American professional wrestler
- Damien Delaney, Irish footballer
- Daniel Delaney, Irish bishop
- Dean Delany, Irish footballer
- Eamon Delaney, Irish author and former diplomat
- Edward Delaney, Irish sculptor
- Edward C. Delaney, creator of the Delaney Card
- Edward X. Delaney, the fictional detective in Lawrence Sanders' books
- Frank Delaney, Irish writer and broadcaster
- Jack Delaney, Canadian boxer in the early 20th century
- James Delaney (disambiguation), several people
- Jimmy Delaney, Scottish footballer
- Joe Delaney, American football player
- John Delaney (disambiguation)
- Joseph Delaney, British author
- Kim Delaney, American actress
- Lucy Delaney, African-American author
- Mark Delaney (disambiguation)
- Martin Delaney (disambiguation)
- Mattie Delaney, American blues singer and performer
- Mike Delaney, British football choreographer and freestyler
- Naamua Delaney, news anchor for CNN
- Padraic Delaney, Irish actor
- Paul Delaney, York University faculty, regular contributor to CTV News
- Robert Delaney, American baseball player
- Sean Delaney, American musician and producer
- Shelagh Delaney, British playwright
- Thomas Joseph Delaney, Danish footballer
For people named Delany, see Delany.
The Delaney Clause is a 1958 amendment to the Food, Drugs, and Cosmetic Act of 1938, named after Congressman James Delaney of New York.
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