The Triumph Stag is a 2+2 sports tourer which was sold between 1970 and 1978 by the British Triumph Motor Company, styled by Italian designer Giovanni Michelotti.

The Triumph Motor Company was a British car and motor manufacturing company in the 19th and 20th centuries. The marque had its origins in 1885 when Siegfried Bettmann of Nuremberg formed S. Bettmann & Co. and started importing bicycles from Europe and selling them under his own trade name in London. The trade name became "Triumph" the following year, and in 1887 Bettmann was joined by a partner, Moritz Schulte, also from Germany. In 1889, the businessmen started producing their own bicycles in Coventry, England.