Alexander Macmillan
Alexander Macmillan may refer to:
- Alexander [MacMillan (publisher)], co-founder of Macmillan Publishers
- Alexander Macmillan, [2nd Earl of Stockton], descendant and former chairman of Macmillan Publishers
- Alexander Hugh Macmillan, member of the Watch Tower Bible & Tract Society Board of Directors in 1918
- Alexander [Stirling MacMillan], Canadian politician in Nova Scotia
- Alex McMillan, American politician from North Carolina
- Alexander McMillan (North [Carolina politician)], American politician from North Carolina
- Alexander McMillan (Wisconsin pioneer), American politician in Wisconsin
- Alexander Macmillan, Canadian engineer