The Alfa Romeo 6C name was used on road, race, and sports cars produced between 1927 and 1954 by Alfa Romeo; the "6C" name refers to six cylinders of the car's straight-six engine.
C6, C06, C VI or C-6 may refer to.
Keratin 6C (protein name K6C; gene name KRT6C), is a type II cytokeratin, one of a number of isoforms of keratin 6 encoded by separate genes located within the type II keratin gene cluster on human chromosome 12q.
The 6C Survey of Radio Sources (6C) is an astronomical catalogue of celestial radio sources as measured at 151-MHz.
Stalag VI-C was a World War II German POW camp located 6 km west of the village Oberlangen in Emsland in north-western Germany.