Delaunay is a French surname. Notable people with the surname include:
People
Arts
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Catherine Delaunay (born 1969), French jazz clarinet player and composer
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Charles Delaunay (1911–1988), French author and jazz expert
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Constance Delaunay (1922-2013), French translator, playwright, novelist and short stories writer
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Jules-Élie Delaunay (1828–1891), French painter
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Louis Arsene Delaunay (1826–1903), French actor
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Robert Delaunay (1885–1941), French artist
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Rose Delaunay (1857–after 1937), French opera ainger
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Sonia Delaunay (1885–1979), Ukrainian-French artist
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Vadim Delaunay (1947–1983), Russian poet and dissident
Football
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Henri Delaunay (1883–1955), French football administrator
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Jean-Pierre Delaunay (born 1966), French footballer
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Pierre Delaunay, football administrator
Science
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Boris Delaunay (1890–1980), Soviet/Russian mathematician, inventor of Delaunay triangulation
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Charles-Eugène Delaunay (1816–1872), French astronomer and mathematician
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Nikolai Delaunay, Junior (1926–2008), Soviet physicist
Politics
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Joseph Delaunay (1752–1794), sometimes called Delaunay d'Angers; a revolutionary-era French politician
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Michèle Delaunay (born 1947), member of the National Assembly of France
Fictional characters
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Various characters in the fantasy novel Kushiel's Dart (2001)
See also
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Delaunay-Belleville, a French luxury automobile
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Delaunay (crater), a lunar crater
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Delaunay triangulation, a way to divide a plane into triangles
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Delannoy
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Delone (disambiguation)
