Ian McDonald
Ian McDonald may refer to:
- Ian McDonald (civil servant), Ministry of Defence spokesman during the Falklands War
- Ian McDonald (musician), member of King Crimson, 1969−1970, and Foreigner, 1977−1979
- Iain Matthews, previously known as Ian McDonald, member of Fairport Convention
- Ian McDonald (cricketer), Australian cricketer
- Ian McDonald (footballer, 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), Scottish football midfielder with Partick Thistle and Greenock Morton, among others
- Ian McDonald (Guyanese writer), Caribbean-born writer
- Ian McDonald (British author), British science fiction novelist
- Ian Donald Roy McDonald, World War I flying ace
- W. Ian McDonald, New Zealand neurologist, academic, and specialist in multiple sclerosis
- Ian MacDonald, pen-name for British music critic Ian MacCormick
- Ian MacDonald (footballer), Scottish football defender with St. Johnstone and Carlisle, among others
- Ian MacDonald (oceanographer), American Biological Oceanographer, Florida State University
- Ian MacDonald (actor), American actor and producer
- Ian MacDonald (politician), former public school teacher and former Mayor of Charlottetown, Prince Edward Island, Canada
- Ian Macdonald (Australian politician), Australian federal politician
- Ian Macdonald (Scottish politician), Scottish nationalist activist
- Ian Macdonald (barrister), Scottish barrister
- Ian Macdonald (New [South Wales politician)], former Australian state politician
- Ian G. Macdonald, British mathematician
- L. Ian MacDonald, Canadian writer, broadcaster, and diplomat
- H. Ian Macdonald, Canadian economist, civil servant, and President of York University, 1974−1984
- Ian MacDonald (architect), Canadian architect
- Ian Verner Macdonald, Canadian writer and diplomat
- Ian MacDonald (physician), Scottish physician
- Ian MacDonald (rugby union), 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 (businessman), Irish entrepreneur
- Iain B. MacDonald, British television director
- Iain Fraoch MacDonald, founder of Clan MacDonald of Glencoe
- Iain Sprangach MacDonald, founder of Clan MacDonald of Ardnamurchan
- Iain McDonald, Scottish football winger with Rangers and Dundee United
- Iain MacDonald, Scottish bagpiper, one of the MacDonald Brothers