John Anstruther

John Anstruther may refer to:


 * Sir John Anstruther, 1st Baronet (c. 1678–1753), Member of Parliament (MP) for Anstruther Easter Burghs 1708–1712 and 1713–1715 and Fife 1715–1741
 * Sir John Anstruther, 2nd Baronet (1718–1799), MP for Anstruther Easter Burghs 1766–1780 and 1790–1793
 * John Anstruther (British Army officer) (1736–1815), Scottish lieutenant-colonel
 * Sir John Anstruther, 4th Baronet and 1st Baronet (1753–1811), MP for Anstruther Burghs 1783–1790, 1796–1797 and 1806–1811, for Cockermouth 1790–1796