Sellick is a surname. Notable people with the surname include:
Arthur Sellick (1878–1958), English cricketer Brian Arthur Sellick (1918–1996), British anesthesiologist John Sellick (1609–1690), English Anglican priest Luke Sellick (born 1990), Canadian jazz composer Phyllis Sellick (1911–2007), English classical pianist and educator Robin Sellick (born 1967), Australian photographer