C26 or C-26 may refer to:
*
C.26, a British World War I Coastal class airship
*
C26 road (Namibia)
*
Caldwell 26, a spiral galaxy
*
Caspar C 26, German sport plane
*
Douglas C-26 Dolphin, an American military flying boat
*
Fairchild C-26 Metroliner, an American military transport
* , C-class submarine of the Royal Navy
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