Ian McDonald may refer to:

• Ian McDonald (civil servant) (1936−2019), Ministry of Defence spokesman during the Falklands War
• Ian McDonald (musician) (1946−2022), member of King Crimson, 1969−70, and Foreigner, 1977−79
• Iain Matthews (born 1946), previously known as Ian McDonald, member of Fairport Convention
• Ian McDonald (cricketer) (1923−2019), Australian cricketer
• Ian McDonald (footballer, born 1951) (born 1951), Scottish football midfielder with Darlington
• Ian McDonald (footballer, born 1953), English football midfielder with York City and Aldershot, among others
• Ian McDonald (footballer, born 1958) (born 1958), Scottish football midfielder with Partick Thistle and Greenock Morton, among others
• Ian McDonald (Guyanese writer) (born 1933), Caribbean-born writer
• Ian McDonald (British author) (born 1960), British science fiction novelist
• Ian Donald Roy McDonald (1898−1920), World War I flying ace
• W. Ian McDonald (1933−2006), New Zealand neurologist, academic, and specialist in multiple sclerosis

Ian MacDonald may refer to:

• Ian MacDonald (1948−2003), pen-name for British music critic Ian MacCormick
• Ian MacDonald (footballer) (born 1953), Scottish football defender with St. Johnstone and Carlisle, among others
• Ian MacDonald (oceanographer), American Biological Oceanographer, Florida State University
• Ian MacDonald (actor) (1914−1978), American actor and producer
• Ian MacDonald (politician), former public school teacher and former Mayor of Charlottetown, Prince Edward Island, Canada
• Ian Macdonald (Australian politician) (born 1945), Australian federal politician
• Ian Macdonald (Scottish politician) (born 1934), Scottish nationalist activist
• Ian Macdonald (barrister) (1939−2019), Scottish barrister
• Ian Macdonald (New South Wales politician) (born 1949), former Australian state politician
• Ian G. Macdonald (1928−2023), British mathematician
• L. Ian MacDonald (born 1947), Canadian writer, broadcaster, and diplomat
• H. Ian Macdonald (born 1929), Canadian economist, civil servant, and President of York University, 1974−1984
• Ian MacDonald (architect) (born 1953), Canadian architect
• Ian Verner Macdonald (1925–2022), Canadian writer and diplomat
• Ian MacDonald (physician) (1873−1932), Scottish physician
• Ian MacDonald (rugby union) (born 1968), South African rugby union player
• Ian Macdonald, Canadian musician, keyboard player for the 1990s band Punchbuggy
• Ian Macdonald, character in the 1927 film Annie Laurie

Iain MacDonald or McDonald may refer to:

• Iain MacDonald (businessman), Irish entrepreneur
• Iain B. MacDonald, British television director
• Iain Fraoch MacDonald (died 1368), founder of Clan MacDonald of Glencoe
• Iain Sprangach MacDonald (died 1340), founder of Clan MacDonald of Ardnamurchan
• Iain McDonald (born 1952), Scottish football winger with Rangers and Dundee United
• Iain MacDonald, Scottish bagpiper, member of the MacDonald Brothers

Topics referred to by the same term

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