Kenneth Mackay may refer to:
Kenneth Mackay (Australian politician) (1859–1935), Australian soldier and politician Buddy MacKay (Kenneth Hood MacKay Jr., born 1933), American politician and diplomat Kenneth Mackay, 2nd Earl of Inchcape (1887–1939), British businessman and peer Kenneth James William Mackay, 3rd Earl of Inchcape (1917–1994), British businessman and peer