Alexander Buchanan, Alex Buchanan or Alexander Buchan may refer to:
Alexander Buchanan Alexander Buchanan, merchant and namesake for Troy Buchanan High School Alexander Buchanan, prisoner on the St. Michael of Scarborough Alex Buchanan (politician) (1905–1985), Australian politician Alexander Buchanan Campbell (1914–2007), Scottish architect Alexander Buchanan (soldier) (d. 1424), eldest of the three sons of Sir Walter Buchanan, eleventh Laird of Buchanan Alan Alexander Buchanan (1905–1984), Anglican bishop Eric Alexander Buchanan (1848–1928), the 3rd Baronet Buchanan of Dunburgh John Alexander Buchanan (1887–1976), Canadian politician and civil engineer Alexander Buchanan (judge) (1848–1930), of Supreme Court of South Australia John Alexander Buchanan (1887–1976), Canadian politician and civil engineer Bender (rapper) (1980–2018), Canadian underground hip hop artist Alexander McKenzie Buchanan (1805–1868), Justice of the Louisiana Supreme Court Alexander Buchanan (stockman) (1810–1865), early pioneer in South Australia
Alex Buchanan Mayor Alex Buchanan, fictional character; see One Life to Live storylines (1990–1999) Alexandria "Alex" Isaacson Buchanan, fictional character Alex Buchanan, better known as Kingkade, progressive house DJ and music producer
Alexander Buchan Alexander Buchan (artist) (d. 1769), Scottish landscape artist Alexander Buchan (mathematician) (1904–1976), Scottish mathematician Alexander Buchan (meteorologist) (1829–1907), Scottish meteorologist