Chaudoir is a French-languageGeopatronyme.com surname and may refer to:
Elvira Chaudoir (1911–1996), Peruvian socialite and British double agent Georges Chaudoir (1847–1923), Belgian competitor at the 1900 Olympics (four-in-hand mail coach) Marguerite Chaudoir (1885–1967), Belgian national champion tennis-player and competitor at the 1920 Olympics Maximilien Chaudoir (1816–1881), Russian entomologist
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