Thomas or Tom Dunn may refer to:Thomas Dunn (bishop) (1870–1931), Roman Catholic bishop of Nottingham Thomas Dunn (lieutenant-governor) (1729–1818), lieutenant governor of Canada Thomas Dunn (mayor) (1801–1871), English mayor of Sheffield Thomas Dunn (musician) (1925–2008), American musician and conductor Thomas A. Dunn, politician and judge in Illinois Thomas B. Dunn (1853–1924), U.S. congressman from New York Thomas G. Dunn (1921–1998), American Democratic Party politician and mayor of Elizabeth, New Jersey Thomas W. Dunn (1908–1983), U.S. Army general Thomas M. Dunn (1836–1916), American physician and politician in Virginia Tom Dunn (1849–1902), Scottish golfer, golf club maker and golf course architect Tom Dunn (journalist) (1929–2006), New York reporter Tom Newton Dunn, English journalist Tom Dunn, English rugby player Thomas Dunn (1913–1975), Irish international rugby union player Tom Dunn (umpire) (1900–1976), American baseball umpire Tommy Dunn (1873–1938), Scottish footballer Tommy Dunn (boxer), English boxer Thomas Dunn, Fijian footballer