The Committee for Cultural Freedom (CCF) was an American political organization active from 1939 to 1951 which advocated opposition to the totalitarianism of both the Soviet Union and Nazi Germany in foreign affairs, and promoted pro-democratic reforms in public and private institutions domestically. Co-founded by influential philosopher and educator John Dewey and the anti-Soviet Marxist academic Sidney Hook, it was reorganized in January 1951 into the American Committee for Cultural Freedom.