Geldart is a surname. Its origin has been potentially tied to the surname "Geldherd" from the 13th century, and may be related to gelding. and may refer to:

Callum Geldart (born 1991), English cricketer Clarence Geldart (1867–1935), American film actor Gary Geldart (born 1950), American ice hockey player James Geldart (1785–1876), English cleric and academic Stanley Geldart (1919–1983), Canadian politician Tom Geldart (1905–1985), English footballer William Martin Geldart (1870–1922), British jurist

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