Alexander MacFarlane
Alexander MacFarlane is the name of
- Alexander Macfarlane (mathematician) (1851–1913), Scottish-Canadian logician and mathematician
- Alexander MacFarlane (judge) († 1755), Fellow of the Royal Society and founder of the Macfarlane Observatory
- Alexander Macfarlane (politician) (1818–1898), attorney and politician from Nova Scotia
- Alexander GJ MacFarlane , winner of the Faraday Medal (IEE) 1993
- Sandy MacFarlane (1878–?), Scottish football player
- Alex MacFarlane , holder of the first Australian passport with 'X' as sexuality