'''Cassels''' is a surname. Notable people with the surname include:
* Andrew Cassels (born 1969), Canadian former ice hockey player * Elsie Cassels (1864–1938), Scottish born naturalist and Canadian ornithologist * John Franklin Cassels (1852–1930), member of the Mississippi House of Representatives * John William Scott Cassels (1922–2015), English mathematician * James Cassels (disambiguation), several people * Richard Cassels (1690–1751), German architect who worked in Ireland * Thomas F. Cassels (c. 1845–1903), African-American legislator from Tennessee during Reconstruction * Walter Richard Cassels (1826–1907), English author * William Wharton Cassels (1858–1925), missionary bishop
==See also== * Cassel (disambiguation) * Cassell (disambiguation) * Cassells * Culzean Castle * Kassel * Clan Kennedy * Cassels, Brock & Blackwell
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