Andrew Buchanan

• Andrew Buchanan of Drumpellier, tobacco lord and Lord Provost of Glasgow, 1740–1742
• Andrew Buchanan (American politician), US Representative from Pennsylvania
• Andrew Buchanan (Pennsylvania state representative), American politician from Pennsylvania
• Andrew Buchanan (surgeon), first Regius Professor of Physiology at the University of Glasgow
• Andrew Buchanan (New Zealand politician), member of the New Zealand Legislative Council
• Sir Andrew Buchanan, 1st Baronet, British diplomat
• Sir Andrew Buchanan, 5th Baronet, owner of Hodsock Priory and Lord Lieutenant of Nottinghamshire
• Andrew Buchanan (figure skater), British figure skater
• Drew Buchanan, fictional character in the American soap opera ''One Life to Live''