Callaghan
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- Ayden Callaghan
- B. J. Callaghan
- Barry Callaghan
- Barry Callaghan (footballer)
- Bede Callaghan
- Big Hero 6 (film)
- Bill Callaghan
- Brendan Callaghan
- Bryan Callaghan Jr.
- Callaghan Apartments
- Callaghan Lake Provincial Park
- Callaghan Park
- Callaghan Square
- Callaghan Valley
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- Callaghan, New South Wales
- Callaghan, Texas
- Callaghan, Virginia
- Callahan (disambiguation)
- Callihan
- Catherine Callaghan (linguist)
- Cecil Callaghan
- Cindy Callaghan
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- David Callaghan (disambiguation)
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- James Callaghan (disambiguation)
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- Jeremy Callaghan
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- Joseph Cruess Callaghan
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- Mike Callaghan
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- Nev Callaghan
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- O'Callaghan
- Pat Callaghan (politician)
- Patrick Callaghan
- Patrick Desmond Callaghan
- Paul Callaghan
- Paul Callaghan (Gaelic footballer)
- Pól Callaghan
- Richard Callaghan
- Serangoon Road
- Sheila Callaghan
- Simon Callaghan
- Slade Callaghan
- Slim Callaghan
- Stan Callaghan
- Stephanie Callaghan
- Steve Callaghan
- Stuart Callaghan
- Tabby Callaghan
- Terry Callaghan
- The Flying Doctors
- Thomas Callaghan (disambiguation)
- Valkyria Chronicles III
- William Callaghan (disambiguation)