List of state leaders in 1665
1664 state leaders - Events of 1665 - 1666 state leaders - State leaders by year
Africa
Asia
Europe
- Austria - Leopold VI, Archduke of Austria (1657–1705), also Leopold I of the Holy Roman Empire (1658–1705)
- Denmark-Norway - Frederick III, King of Denmark and King of Norway (1648–1670)
- England - Charles II, King of England (1660–1685)
- France - Louis XIV, King of France (1643–1715)
- Ottoman ( Turkish ) Empire
- Polish-Lithuanian Commonwealth - Jan II Kazimierz Vasa, King of Poland (1648–1668)
- Portugal - Afonso VI, King of Portugal (1656–1667)
- Savoy - Charles Emmanuel II, Duke of Savoy (1638–1675)
- Spain
- Sweden - Charles XI, King of Sweden (1660–1697)
- Tuscany - Ferdinando II de' Medici, Grand Duke of Tuscany (1621–1670)
- United Provinces