Heads of State: 1815 - 1816 - 1817
- Abkhazia - Safar Begi, Prince of Abkhazia (1810-1821)
- Afghanistan - Mahmud Shah, King of Afghanistan (1809-1818)
- Andorra - Francesc Antoni de la Dueña y Cisneros, Bishop of Urgel (1797-1816)
- Angola - Luís da Mota Fêo e Torres, Governor of Angola (1816-1819)
- Antigua and Barbuda - Sir James Leath, Governor of Antigua and Barbuda
- Argentina - Ignacio Álvarez Thomas (1815-Apr. 16, 1816), Antonio González Balcarce (to Jul. 9), Juan Martín de Pueyrredón (to 1819), Supreme Directors of Argentina
- Aruba - Lodewijk Christoph Boyé, Commander of Aruba (1816-1819)
- Austria - Franz I, Emperor of Austria (1804-1835)