Ian MacGregor (disambiguation)

Sir Ian MacGregor (1912–1998) was a Scottish-American metallurgist and industrialist

Ian MacGregor, Macgregor or McGregor may also refer to:


 * Ian McGregor (malariologist) (1922–2007)
 * Ian McGregor (Australian footballer) (born 1942), Australian rules footballer
 * Ian McGregor (Scottish footballer) (born 1953)
 * Ian Macgregor (born c. 1937), British investment executive and chartered accountant
 * Ian MacGregor (journalist), British newspaper editor
 * Ian MacGregor (cyclist) (born 1983), American professional road racing
 * Ian MacGregor (rugby union) (1931–2016), Scottish rugby union player