King Frederick

King Frederick or King Frederik may refer to:

• Frederick I of Denmark
• Frederick II of Denmark
• Frederick III of Denmark
• Frederick IV of Denmark
• Frederick V of Denmark
• Frederick VI of Denmark
• Frederick VII of Denmark
• Frederik VIII of Denmark
• Frederik IX of Denmark
• Frederik X of Denmark
• Frederick I of Sweden
• Frederick I of Prussia, previously Frederick III, Elector of Brandenburg
• Frederick II of Prussia, Frederick the Great
• Frederick III, German Emperor, also King Frederick III of Prussia
• Frederick I of Württemberg (1754–1816)
• Frederick of Naples
• Frederick I, Holy Roman Emperor, also King of Italy
• Frederick II, Holy Roman Emperor, also King Frederick I of Sicily
• Frederick III, Holy Roman Emperor, also King of Italy
• Frederick III of Sicily
• Frederick the Simple
• Frederick the Fair
• Frederick V of the Palatinate

In addition, a number of kings of Prussia were named Frederick William:

• Frederick William I of Prussia (1688–1740)
• Frederick William II of Prussia (1744–1797)
• Frederick William III of Prussia (1770–1840)
• Frederick William IV of Prussia (1795–1861)

In addition, a number of kings of Saxony were named Frederick Augustus:

• Frederick Augustus I of Saxony (1750–1827)
• Frederick Augustus II of Saxony (1797–1854)
• Frederick Augustus III of Saxony (1865–1932)