People
- Barry O'Callaghan, CEO and controlling shareholder of Riverdeep Interactive Learning
- Bill Callahan, US songwriter and musician, member of the band Smog and noted solo performer
- Con O'Callaghan, Ireland's first Olympic decathlete; brother of Dr. Pat O'Callaghan
- Christopher Callaghan, 2006 Republican Candidate for NY State Comptroller
- Curtis J. Callaghan entomologist
- Daniel J. Callaghan, Rear Admiral - US Navy
- David Chase Callahan, Colonel, Aide-de-Camp to the Governor of Alabama (Hons); 2011 Democratic Candidate for the Mississippi House of Representatives.
- Denis O'Callaghan, Australian rules rugby player
- Denis O'Callaghan (cleric), vicar capitular of the Roman Catholic Diocese of Cloyne during the sexual abuse scandal there
- Donncha O'Callaghan (born 1979), Irish international rugby union player
- Edmund Bailey O'Callaghan, doctor, journalist, leader in the patriotic movements of both Ireland and Quebec
- Fred Callaghan (born 1944), footballer with Fulham
- Admiral of the Fleet Sir George Callaghan
- Georgina Callaghan, who performs as Callaghan, British musician
- Guy Callaghan, New Zealand butterfly swimmer
- James Callaghan, Prime Minister of the United Kingdom (1976–1979)
- John O'Callaghan (DJ), DJ and producer from Ireland, mostly well known for his hit "Big Sky"
- John O'Callaghan, lead singer of The Maine
- Joseph T. O'Callahan, Captain, US Navy, Jesuit priest, Medal of Honor Recipient
- Leanne Callaghan (b. 1972), British ski mountaineer and mountain climber
- Miriam O'Callaghan, RTÉ presenter; her father grew up at Callaghan's Cross, County Kerry
- Morley Callaghan, Canadian novelist, short story writer, playwright, TV and radio personality
- Seán O'Callaghan, from Tralee, County Kerry; IRA informer
- Sheila Callaghan, American playwright
- Steve Callaghan, Writer of Family Guy TV series
- William M. Callaghan, Admiral, US Navy; first commanding officer of the battleship USS Missouri
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Famous quotes containing the word people:
“There is a certain embarrassment about being a storyteller in these times when stories are considered not quite as satisfying as statements and statements not quite as satisfying as statistics; but in the long run, a people is known, not by its statements or its statistics, but by the stories it tells.”
—Flannery O’Connor (1925–1964)
“They call them the haunted shores, these stretches of Devonshire and Cornwall and Ireland which rear up against the westward ocean. Mists gather here, and sea fog, and eerie stories. That’s not because there are more ghosts here than in other places, mind you. It’s just that people who live hereabouts are strangely aware of them.”
—Dodie Smith, and Lewis Allen. Roderick Fitzgerald (Ray Milland)
“Some people are addicts. If they don’t act, they don’t exist.”
—Jeanne Moreau (b. 1928)