Duncan MacKay

Duncan MacKay or McKay may refer to:

• Duncan MacKay (footballer) (1937–2019), Scottish former footballer
• Duncan Mackay (musician) (born 1950), British composer, singer and musician
• Duncan McKay (TV presenter), Scottish television presenter and podcaster
• Mickey MacKay (Duncan McMillan MacKay, 1894–1940), Canadian ice hockey centre
• Duncan McKay, a character from Monarch of the Glen (TV series)