Quealy or Quealey is a surname in the English language. It is derived from one of several names in Irish: Ó Cadhla ^[1] and Ua Caollaidhe of Uí Bercháin (Ibercon) in Osraige.

Notable people with the surname

• Chelsea Quealey (1905–1950), American jazz trumpeter
• Gerit Quealy (born 1960), American writer, editor, Shakespearean scholar and actor
• Jim Quealey (1917–?), Australian professional rugby league footballer
• Michael Quealy (fl. 1980s), former Fine Gael politician in Ireland
• Patrick Quealy (1857–1930), founder of Kemmerer, Wyoming
• William H. Quealy (1913–1993), judge of the United States Tax Court