TUC may refer to: Places Teniente General Benjamín Matienzo International Airport, Tucumán, Argentina (IATA code: TUC) San Rafael Airport (Venezuela) (NDB code: TUC) Tung Chung station, Hong Kong; MTR (station code TUC) Tucana (constellation), standard astronomical abbreviation Organizations Hong Kong and Kowloon Trades Union Council Turismo Aéreo de Chile (ICAO airline code: TUC) airline of Chile, see List of airline codes Transvaal University College Technical University of Crete Trades Union Congress, a federation of trade unions in England and Wales Trades Union Congress of Ghana Trade Union Congress of Nigeria (2005) Aden Trade Union Congress Third Unitarian Church, a Unitarian Universalist church in the West Side of Chicago, Illinois Other uses Mutu language (ISO 639 code: tuc) Time of useful consciousness, duration of useful functioning in an hypoxic environment Star Trek VI: The Undiscovered Country, 1991 American science fiction film directed by Nicholas Meyer TUC (cracker), brand of salted octagonal golden-yellow crackers See also Tucson International Airport (code TUS, not TUC)