4C may refer to:

"4C" (Person of Interest), an episode of the TV series Person of Interest 4C Array, a cylindrical paraboloid radio telescope at the Mullard Radio Astronomy Observatory 4C Entity, a consortium to establish a platform for digital rights management schemes Alfa Romeo 4C, a sports car Fourth Cambridge Survey of Radio Sources Cape Cod Community College (4Cs) 4/C, a proposed supertall skyscraper in Seattle, Washington LATAM Colombia, a Colombian airline IATA code STD-4C, a classification of cluster mailboxes defined by the United States Postal Service 4C, a grade of afro-textured hair in the Andre Walker Hair Typing System 4C, the production code for the 1975 Doctor Who serial The Ark in Space The 4 C's or marketing mix, a business tool used in marketing products The 4 C's of 21st century skills education: Collaboration, Communication, Critical thinking, Creativity FourCC, a four-character code used in software for identifying an object Zen 4c

See also

C (disambiguation) 4 (disambiguation) Long March 4C, a Chinese rocket Oflag IV-C, a German Army prisoner-of-war camps for officers in World War II in Colditz Castle Studio 4°C, a Japanese animation studio 4-C's of Diamond Grading IVC (disambiguation) CCCC (disambiguation) C4 (disambiguation)