Hennings is a surname. Notable people with the surname include:
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Artur Hennings (1940–2003), German chess master
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Chad Hennings (born 1965), American football defensive lineman
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Emmy Hennings (1885–1948), German performer and poet
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Ernest Martin Hennings (1886–1956), American painter, member of Taos Society of Artists
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John Hennings (c. 1833–1898), theatrical scene painter in Australia
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Margit Hennings (born 1943), Austrian chess master
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Rouwen Hennings (born 1987), German football player
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Thomas C. Hennings Jr. (1903-1960), American politician, Congressional Representative and Senator from Missouri
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Andrew Hennings and Kate Hennings, fictional characters
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Sam Hennings, American Actor
