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- Charles Evans Hughes (1862–1948), United States Secretary of State and Chief Justice of the United States
- Charles Evans Hughes, Jr. (November 30, 1889 – January 21, 1950) was the United States Solicitor General in 1929-1930.
- Charles Evans Hughes III (1915 – 1985) was an American architect.
- Chesney Hughes (born 1991), Anguillian cricketer
- Chris Hughes (born 1983), co-founder of Facebook
- Chrissy Hughes, American figure skater
- Christa Hughes, Australian singer
- Chuck Hughes (1943–1971), NFL player
- Clara Hughes, OC, OM (born September 27, 1972) is a Canadian cyclist and speed skater, and has won multiple Olympic medals in both sports.
Clyde Hughes (born December 7, 1948), Leading American Protestant
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