Others
- Charles Fox (mathematician) (1897–1977), British-born mathematician
- Charles Fox (scientist) (1797–1878), British scientist
- Charles Eli Fox (1879–1926), American architect, partner in the Chicago firm of Marshall and Fox
- Charles Elliot Fox (1878–1974), English ethnographer and missionary
- Chappie Fox (Charles Philip Fox, 1913–2003), circus historian and philanthropist
- Charles Richard Fox (1796–1873), illegitimate son of Henry Richard Vassall-Fox, 3rd Baron Holland
- Charley Fox (Charles W. Fox, 1920–2008), Canadian Air Force officer in WWII
- Charles Masson Fox (1866–1935), Cornish businessman and chess player
- Charles Vincent Fox (1877–?), British army officer and rower
- Charles R. Fox (born 1912) American Major General
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