C46

C46 or C-46 may refer to:

Vehicles

 * Boeing KC-46 Pegasus, an American military tanker aircraft
 * Curtiss C-46 Commando, an American transport aircraft
 * HMS Trinidad (C46), a Fiji-class light cruiser of the Royal Navy

Other uses

 * An Act to amend the Criminal Code (offences relating to conveyances), Bill C-46 of the Parliament of Canada
 * C46 road (Namibia)
 * Caldwell 46, a variable nebula
 * Escadrille C46, a squadron of the French Air Service
 * Kaposi's sarcoma
 * Three Knights Game, a chess opening
 * C46, a 46 minute-long Compact Cassette