C17, C-17 or C.17 may refer to:

Transportation , a 1917 British C-class submarine

Air Boeing C-17 Globemaster III, a military transport aircraft Lockheed Y1C-17 Vega, a six-passenger monoplane Cierva C.17, a 1928 English experimental autogyro

Land C-17 highway (Spain) also known as Eix del Congost, a primary highway in Catalonia Queensland C17 class locomotive Sauber C17, a 1998 Formula One car

Science and technology C17 (C standard revision), an informal name for ISO/IEC 9899:2018, a revision of the C programming language C17, a female two-pole IEC 60320 electrical cable connector that mates with a male C18 appliance inlet Caldwell 17, a dwarf spheroidal galaxy of the Local Group in the constellation Cassiopeia Carbon-17 (C-17 or 17C), an isotope of carbon C17, a 17-Carbon molecule in chlorophyll metabolism Precorrin-3B C17-methyltransferase, an enzyme involved in that metabolism Small intestine cancer (ICD-10 code)

Other uses City 17, a fictional location in the Half-Life universe French Defence (Encyclopaedia of Chess Openings code) 17th century Android 17, character from Dragon Ball Franchise

See also

C++17 (programming language) a standard codified in 2017, part of ISO/IEC 14882

17 (disambiguation)

Class 17 (disambiguation)