6C

6C or VI-C may refer to :


 * Sixth Cambridge Survey of radio sources
 * Alfa Romeo 6C, a road, race and sports car
 * Keratin 6C in biochemistry
 * Stalag VI-C, a German prisoner of war camp
 * Carbon (6C), a chemical element
 * 6C, the production code for the 1982 Doctor Who serial Time-Flight