Leonhard may refer to:
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Leonhard Euler (1707–1783), Swiss mathematician and physicist
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Leonhard Hutter (1563–1616), German theologian
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Karl Leonhard (1904–1988), German psychiatrist
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Jim Leonhard (1982– ), American football safety
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LEONHARD (2009– ), Oslo-based DJ collective
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Leonhard Rauwolf (1535–1596), German physician and botanist
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Leonhard Stejneger
Leonhard Hess Stejneger (30 October 1851 – 28 February 1943) was a Norwegian-born American ornithologist, herpetologist and zoologist. Stejneger specialized in vertebrate natural history studies. He gained his greatest reputation with reptiles ...
(1851–1943), American herpetologist
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Wolfgang Leonhard
Wolfgang Leonhard (16 April 1921 – 17 August 2014) was a German political author and historian of the Soviet Union, the German Democratic Republic and Communism. A German Communist whose family had fled Hitler's Germany and who was educated i ...
(1921-2014), German author & historian
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