C12

C12, C.XII or C-12 may be:

• LNER Class C12, a class of British 4-4-2T locomotives
• C12 Workmen's Compensation (Agriculture) Convention, 1921
• C-12 Huron, a logistics support aircraft of the U.S. Military (military versions of the Beechcraft Super King Air)
• C-12 Vega, an early transport of the United States Army Air Corps
• Albatros C.XII, a World War I German military reconnaissance aircraft
• Autovia C-12, a highway in Catalonia, Spain
• Callaway C12, an American contemporary sports car
• Cierva C.12, a 1927 British experimental autogyro
• HMS C12, a British C-class submarine of the Royal Navy
• JNR Class C12, a class of Japanese steam locomotive
• Sauber C12, a 1993 racing car
• Spyker C12 Zagato, a 2007 Dutch car
• USS Columbia (C-12), a light cruiser of the United States Navy
• C-12: Final Resistance, a video game for PlayStation
• Caldwell 12 (NGC 6945, the Fireworks Galaxy), an intermediate spiral galaxy in the constellations Cepheus and Cygnus
• The 12th century
• Carbon-12, the most abundant stable isotope of carbon
• Malignant neoplasm of piriform sinus ICD-10 code
• Bill C-12 in Canadian law