Alexander MacDonald

Alexander or Alex MacDonald may refer to:

Politics

Alasdair Óg of Islay (died 1299), Lord of Islay and chief of Clann Domhnaill
Alexander of Islay, Earl of Ross, or Alexander MacDonald (died 1449), Scottish nobleman
Alexander MacDonald, 5th of Dunnyveg (died 1538), Scoto-Irish chieftain
Alexander Og MacDonald (died 1613), chief of the MacDonalds of Dunnyveg
Alexander Macdonald, 17th of Keppoch (died 1746), Scottish clan chief, military officer, and prominent Jacobite
Alexander Macdonald, 1st Baron Macdonald (died 1795), Scottish peer
Alexander Macdonald, 2nd Baron Macdonald (1773–1824), Scottish peer and Member of Parliament
Alexander Francis Macdonald (1818–1913), politician and railway contractor
Alexander Macdonald (Lib–Lab politician) (1821–1881), Scottish miner, teacher, trade union leader and Lib-Lab politician
Alexander Macdonald (Manitoba politician) (1844–1928), Canadian politician, Mayor of Winnipeg in 1892
Alexander Macdonald, 7th Baron Macdonald (1909–1970), grandson of 6th Baron Macdonald
Alexander Macdonald (British Columbia politician) (1918–2014), Canadian MP for Vancouver Kingsway
Alex Macdonald (trade unionist) (1910–1969), Australian trade unionist

Alasdair mac Mhaighstir Alasdair (1698–1770), known in English as Alexander MacDonald, Scottish poet
Alexander Macdonald (antiquary) (1791–1850), Scottish antiquarian and editor
Alexander MacDonald (Scottish bishop) (1736–1791), Roman Catholic bishop and vicar apostolic in Scotland
Alexander MacDonald (Canadian bishop) (1858–1941), Canadian Roman Catholic bishop, educator and author
Alex Bath MacDonald (1898–1981), Australian Army officer
Alex MacDonald (footballer, born 1948), Scottish football player and manager
Alex MacDonald (footballer, born 1990), Scottish football player