General Mackay may refer to:
Alexander Mackay (British Army officer) (1717–1789), British Army lieutenant general Andrew Mackay (British Army officer) (fl. 1980s–2000s), British Army major general Hugh Mackay (Scottish general) (c. 1640–1692), Dutch Scots Brigade lieutenant general Iven Mackay (1882–1966), Australian Army lieutenant general Kenneth Mackay (Australian politician) (1859–1935), Australian Army Reserve major general
See also Iain Mackay-Dick (born 1945), British Army major general