Ian McDonald may refer to:Ian McDonald (1936−2019), Ministry of Defence spokesman during the Falklands War Ian McDonald (musician) (1946−2022), member of King Crimson, 1969−1970, and Foreigner, 1977−1979 Iain Matthews, previously known as Ian McDonald, member of Fairport Convention Ian McDonald (cricketer) (1923−2019), Australian cricketer Ian McDonald, Scottish football midfielder with Darlington Ian McDonald, English football midfielder with York City and Aldershot, among others Ian McDonald, Scottish football midfielder with Partick Thistle and Greenock Morton, among others Ian McDonald, Caribbean-born writer Ian McDonald, 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