Cormack is a surname derived from the Irish given name "Cormac", and may refer to:
Science
Allan McLeod Cormack, South African-American Nobel prize winner as co-inventor of Computed tomography Gordon Cormack, Canadian computer scientist and co-inventor of the DMC data compression algorithm
Film
Bartlett Cormack, American actor, playwright, screenwriter, and producer
Danielle Cormack, New Zealand actress
Literature
Patrick Cormack, English politician and writer
William Cormack, Scottish-Canadian explorer and author
Other fields
Arthur Cormack, Scottish Gaelic singer and musician
Christian Cormack, British rowing cox
Graham Cormack, Scottish curler
Joe Cormack, former Australian rules footballer
John Cormack, Irish sportsman
Karen Mac Cormack, British/Canadian experimental poet
Lesley Cormack (born 1957), Canadian historian of mathematics and historian of geography Sir Magnus Cormack, Scottish-born Australian politician Paul Cormack, former English cricketer Peter Cormack, Scottish footballer Peter McKenzie Cormack, crew member of the SS Sauternes Professor Robert Cormack, British academic Professor Robin Cormack, British classicist and art historian. Teresa Cormack, New Zealand murder victim