UC3 may refer to:
* , a private Danish submarine
* , a German submarine of World War One
*
German ''Type UC III'' submarine, a World War One class of submarine
*
''UC 3'' (album)
See also
*
UC (disambiguation)
UC may refer to:
Arts and entertainment
* '' University Challenge'', a popular British quiz programme airing on BBC Two
** '' University Challenge (New Zealand)'', the New Zealand version of the British programme
* Universal Century, one of the ...
*
UCCC (disambiguation)
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