Minnett is a surname. Notable people with the surname include:
Cora Minnett (born 1868), Australian author and actress Harry Clive Minnett (1917–2003), Australian astronomer Leslie Minnett (1883–1934), Australian cricketer Roy Minnett (1888–1955), Australian cricketer, brother of Leslie and Rupert, later a doctor Rupert Minnett (1884–1974), Australian architect and cricketer