C33 or C-33 may refer to:
Vehicles
;Aircraft
*
Beechcraft C33 Debonair
The Beechcraft Bonanza is an American general aviation aircraft introduced in 1947 by Beechcraft, Beech Aircraft Corporation of Wichita, Kansas. The six-seater, single-engined aircraft is still produced by Beechcraft and has been in continuou ...
, an American civil utility aircraft
*
Boeing C-33
The Boeing 747-400 is a large, long-range wide-body airliner produced by Boeing Commercial Airplanes, an advanced variant of the initial Boeing 747.
The ''Advanced Series 300'' was announced at the September 1984 Farnborough Airshow, targeti ...
, a proposed American military transport
*
Caspar C 33, a German trainer
*
Caudron C.33, a French passenger biplane
*
Douglas C-33, an American military transport
;Automobiles
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Nissan Laurel C33, a Japanese sedan
*
Sauber C33, a Swiss Formula One car
;Ships
* , a C-class submarine of the Royal Navy
Other uses
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Autopista C-33, a highway in Catalonia, Spain
*
C33 road (Namibia)
*
Caldwell 33, a supernova remnant
*
Head and neck cancer
Head and neck cancer is a general term encompassing multiple cancers that can develop in the head and neck region. These include cancers of the mouth, tongue, gums and lips (oral cancer), voice box ( laryngeal), throat ( nasopharyngeal, orophary ...
*
King's Gambit Accepted
The King's Gambit is a chess opening that begins with the moves:
:1. e4 e5
:2. f4
White offers a pawn to divert the black e-pawn. If Black accepts the gambit, White may play d4 and Bxf4, regaining the gambit pawn with domination, or direct ...
, a chess opening
* C.3.3., the pseudonym used by Oscar Wilde to publish his poem "
The Ballad of Reading Gaol
''The Ballad of Reading Gaol'' is a poem by Oscar Wilde, written in exile in Berneval-le-Grand and Naples, after his release from Reading Gaol () on 19 May 1897. Wilde had been incarcerated in Reading after being convicted of gross indecenc ...
"
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