- Source: Simon Callaghan
- John Simon, Viscount Simon I
- John M. Deane
- Cheryl
- Leap Year
- Markus 6
- The X Factor (seri TV Britania Raya)
- Pertempuran Laut Guadalkanal
- Sosialisme demokratis
- Daftar pustaka Christopher Hitchens
- Bermuda
- Simon Callaghan
- Simon Anthony
- Callaghan
- Dorothy Howell (composer)
- John Simon, 1st Viscount Simon
- William Busch
- Roger Sacheverell Coke
- Tabby Callaghan
- Labour government, 1974–1979
- Henry II Stakes
Simon Anthony Callaghan (born March 7, 1983, in Cambridge, England) is a trainer of Thoroughbred racehorse who moved to the United States in 2009, where he established a racing stable at Santa Anita Park.
Callaghan's father Neville, was a racehorse trainer at Newmarket, where Callaghan got his start assisting his father in various aspects of training. Neville Callaghan trained for thirty-seven years before retiring in 2007, with his best horse probably being Danehill Dancer.