Charles Long may refer to:
- Charles Long (ABSRA) (born 1945), founder of the America's Buffalo Soldiers Re-Enactors Association, convicted of manslaughter
- Charles R. Long (1923–1951), United States Army soldier and Medal of Honor recipient
- Charles G. Long (1869–1943), Assistant Commandant of the Marine Corps
- Charles Long, 1st Baron Farnborough (1760–1838), English politician and connoisseur of the arts
- Charles Edward Long (1796–1861), English genealogist and antiquary
- Charlie Long (1938–1989), American football guard
- Charles Wigram Long (1842–1911), British Member of Parliament for Evesham 1895–1910
- Charles Edwin Long (1879–1953), American-born farmer and political figure in Saskatchewan, Canada
- Charles L. Long (1851–1929), Massachusetts lawyer, judge and politician
- Charles Long (priest) (1802–1875), Anglican priest
- Charles D. Long (1841–1902), Michigan Supreme Court Justice
- Charles H. Long (1926-2020), American Historian of Religion and Prominent African-American Scholar
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