Cadorin is a surname. Notable people with the surname include:
Chrissy Cadorin (born 1980), Canadian curler Ettore Cadorin (1876–1952), American sculptor and teacher Ludovico Cadorin (1824–1892), Italian architect Mattia Cadorin (mid-17th century), Italian engraver and publisher Serge Cadorin (1961–2007), Belgian footballer