| Grover Cleveland | 22nd and 24th president of th… | 1837–1908 |
| John Cleveland | English poet | 1613–1658 |
| Craig Clevenger | American author of contempora… | 1964 |
| Brian Clevinger | writer | 1978 |
| Voltairine de Cleyre | American anarchist writer and… | 1866–1912 |
| J. M. G. Le Clézio | French writer and Nobel Prize… | 1940 |
| Clarice Cliff | English ceramic artist | 1899–1972 |
| William Kingdon Clifford | English mathematician and phi… | 1845–1879 |
| Eleanor Clift | American journalist | 1940 |
| Lucille Clifton | American poet | 1936–2010 |
| Mark Clifton | American writer | 1906–1963 |
| Scott Clifton | American television actor, mu… | 1984 |
| John Climacus | Syrian mystic and abbot | 579–649 |
| Ernest Cline | writer | 1972 |
| Patsy Cline | American country music singer | 1932–1963 |
| Bill Clinton | 42nd President of the United … | 1946 |
| Chelsea Clinton | daughter of Bill and Hillary … | 1980 |
| George Clinton | American singer, songwriter, … | 1941 |
| Hillary Clinton | American politician, senator,… | 1947 |
| Kate Clinton | American comedian | 1947 |
| Tim Cliss | | |
| Art Clokey | American animator | 1921–2010 |
| George Clooney | American actor, filmmaker, an… | 1961 |
| Chuck Close | American artist | 1940–2021 |
| Robert Clarkson Clothier | American academic administrat… | 1885–1970 |
| Arthur Hugh Clough | English poet | 1819–1861 |
| Jim Clyburn | American politician | 1940 |
| Tom Crean (basketball coach) | American college basketball c… | 1966 |
| Peter Coad | American software entrepreneur | 1953 |
| Paul Stagg Coakley | Catholic archbishop | 1955 |
| Ronald H. Coase | British economist and author | 1910–2013 |
| Florence Earle Coates | American writer and poet | 1850–1927 |
| Ken Coates | | |
| Ta-Nehisi Coates | writer, journalist, and educa… | 1975 |
| Dan Coats | 5th and current Director of N… | 1943 |
| Elizabeth Coatsworth | American writer | 1893–1986 |
| Frances Bean Cobain | American artist | 1992 |
| Kurt Cobain | American musician and artist | 1967–1994 |
| Frank I. Cobb | American newspaper editor | 1869–1923 |
| Howell Cobb | American politician | 1815–1868 |
| John B. Cobb | American theologian | 1925 |
| Ty Cobb | American baseball player | 1886–1961 |
| Frances Power Cobbe | Irish writer, social reformer… | 1822–1904 |
| William Cobbett | English pamphleteer, farmer a… | 1763–1835 |
| Richard Cobden | English manufacturer and Radi… | 1804–1865 |
| Harlan Coben | Author | 1962 |
| Robbie Coburn | Australian writer | 1994 |
| Tom Coburn | Medical doctor, politician | 1948 |
| Antonio Cocchi | Italian physician and natural… | 1695–1758 |
| Johnnie Cochran | American lawyer | 1937–2005 |
| Alfred Cochrane | English cricketer | 1865–1948 |
| Alexander Cockburn | Leftist journalist and writer | 1941–2012 |
| Bruce Cockburn | Canadian folk/rock guitarist … | 1945 |
| Claud Cockburn | Irish journalist | 1904–1981 |
| Jarvis Cocker | English musician, singer-song… | 1963 |
| Jean Cocteau | French poet, novelist, dramat… | 1889–1963 |
| E. F. Codd | computer scientist | 1923–2003 |
| Grace Coddington | former model and the creative… | 1941 |
| Corneliu Zelea Codreanu | Romanian politician | 1899–1938 |
| Andrei Codrescu | American writer | 1946 |
| Diablo Cody | Screenwriter and author | 1978 |
| Jonathan Coe | English novelist | 1961 |
| Sue Coe | British artist | 1951 |
| Paulo Coelho | Brazilian lyricist and noveli… | 1947 |
| Joel Coen | American film director, scree… | 1954 |
| J.M. Coetzee | South African writer | 1940 |
| Charles Coffey | Irish composer | |
| Joseph L. Coffey | American Roman Catholic pries… | 1960 |
| William Sloane Coffin | American activist | 1924–2006 |
| Genevieve Cogman | novelist and game designer | 1972 |
| Peter Cohan | American businessman | |
| Alan Cohen | | |
| Albert Cohen | Swiss writer | 1895–1981 |
| Albert K. Cohen | American criminologist | 1918–2014 |
| Bram Cohen | American programmer, creator … | 1975 |
| Chapman Cohen | British atheist and secularis… | 1868–1954 |
| Eliot A. Cohen | American neoconservative mili… | 1956 |
| Elizabeth Cohen | American journalist | |
| Floris Cohen | Dutch historian | 1946 |
| Gerald Cohen | Canadian philosopher | 1941–2009 |
| Hermann Cohen | German philosopher | 1842–1918 |
| I. Bernard Cohen | American historian of science | 1914–2003 |
| Jeffrey Cohen | | 1940 |
| Kerry Cohen | American writer | 1970 |
| Lea Cohen | | 1942 |
| Leah Hager Cohen | American writer | |
| Leonard Cohen | Canadian poet and singer-song… | 1934–2016 |
| Mickey Cohen | | |
| Morris Raphael Cohen | American philosopher | 1880–1947 |
| Nick Cohen | Journalist | 1961 |
| Noam Cohen | American journalist | 1999 |
| Paul Cohen | American mathematician | 1934–2007 |
| Rob Cohen | American film director, produ… | 1949 |
| Ronald Cohen | British businessman | 1945 |
| Sacha Baron Cohen | English stand-up comedian, wr… | 1971 |
| Samuel T. Cohen | American physicist | 1921–2010 |
| Thomas Cohen | British singer | 1990 |
| William S. Cohen | American politician | 1940 |
| Claude Cohen-Tannoudji | French physicist | 1933 |
| Marjorie Cohn | American law professor | 1948 |
