Langner is a Geman surname. Notable people with the surname include:
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David Langner (1951–2014), American football player
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Gerard Langner, Polish ice hockey player
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Karol Langner (1843–1912), Polish priest
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Lawrence Langner (1890–1962), Welsh-born American playwright
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Paul Langner, German ice hockey player
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Władysław Langner (1896—1972), Polish Army general
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German-language surnames