Treaty of London may refer to:
- Treaty of London, 1359 ceding western France to England, repudiated by the Estates-General in Paris, 19 May 1359
- Anglo-Dutch Treaty of 1824
- Treaty of London, 1604 between England and Spain
- Treaty of London, 1827 between Britain, France, and Russia for end to Turkish action in Greece
- Treaty of London, 1832 between Britain, France, and Russia creating an independent Kingdom of Greece
- Treaty of London, 1839 guaranteeing the neutrality of Belgium
- Treaty of London, 1864 uniting the Ionian Islands with Greece
- Treaty of London, 1867 guaranteeing the neutrality of Luxembourg
- Treaty of London, 1913 ending the First Balkan War
- Treaty of London, 1915 between the Entente powers and Italy