Andrew or Andy Hay may refer to:

• Andrew Hay (British Army officer) (1762–1814), British Army officer
• Andrew Hay (footballer) (1909–?), Scottish footballer
• Andrew K. Hay (1809–1881), American Whig politician
• Andy Hay (rugby league) (born 1973), rugby league player and coach
• Andy Hay (rowing) (born 1964), New Zealand rowing coxswain
• Andrew Hay, 8th Earl of Erroll (1531–1585), Scottish nobleman and politician
• Andrew Leith Hay (1785–1862), Scottish soldier, politician and writer on architecture
• Andrew Hay (moderator) (c.1540–1593), Scottish minister