Alexander Mackenzie
Alexander Mackenzie most commonly refers to:
- Alexander Mackenzie (explorer), Scottish explorer and commercial partner of the North West Company
- Alexander Mackenzie (politician), second prime minister of Canada
- Alexander Mackenzie of Kintail, Scottish clan chief
- Alexander Muir Mackenzie, Scottish advocate and landowner
- Alexander Slidell Mackenzie, US Navy officer involved in the "Somers Affair"
- Alexander Mackenzie (historian), Scottish historian
- Alexander Slidell MacKenzie, US Navy officer, son of Alexander Slidell Mackenzie
- Alexander Mackenzie (civil servant), British colonial official in Burma
- Alexander Mackenzie (engineer), US Army Chief of Engineers
- Alexander Mackenzie (composer), Scottish violinist, conductor, composer and head of the Royal Academy of Music in London
- Alexander Marshall Mackenzie, Scottish architect
- Alick Mackenzie or Alexander Cecil Knox Mackenzie, Australian cricketer
- Alexander MacKenzie (priest), Provost of St Andrew's Cathedral, Inverness
- Alexander George Robertson Mackenzie, Scottish architect and son of Alexander Marshall Mackenzie
- Alex Mackenzie, Scottish character actor
- Alexander Mackenzie (artist), St Ives school artist
- Alexander Mackenzie (Australian politician)
- Alexander MacKenzie (rugby union), Scottish rugby player