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