Alexander Duff is the name of:
- Alexander Duff (missionary) (1806–1878), Scottish missionary
- Sir Alexander Duff (British Army officer) (1777–1851), Scottish general and Lord Lieutenant of Moray
- Alexander Duff, 3rd Earl Fife (1731–1811), Scottish nobleman
- Alexander Duff, 1st Duke of Fife and 6th Earl Fife (1849–1912)
- Alexander Ludovic Duff (1862–1933), Royal Navy officer
Famous quotes containing the word duff:
“‘Why do you wear your hair like a man,”
—Henry Duff Traill (1842–1900)