King Frederick 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
- Frederick VIII of Denmark
- Frederick IX 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)
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)
Famous quotes containing the words king and/or frederick:
“Gargantua, at the age of four hundred four score and forty- four years begat his son Pantagruel, from his wife, named Badebec, daughter of the King of the Amaurotes in Utopia, who died in child-birth: because he was marvelously huge and so heavy that he could not come to light without suffocating his mother.”
—François Rabelais (1494–1553)
“For should your hands drop white and empty
All the toys of the world would break.”
—John Frederick Nims (b. 1913)