Frederick is a common male forename. It means "peaceful ruler" in Old German. Varients include Friedrich, Fredrik, Frederik, Fryderyk, Federico, Frederico, and Frédéric. It may refer to:

In royalty:

• Frederick I of Austria (Babenberg), Duke of Austria from 1195-1198
• Frederick II of Austria (1219-1246), last Duke of Austria from the Babenberg dynasty
• Frederick I of Austria (Habsburg) (1286-1330), Duke of Austria and King of the Romans
• Frederick III of Saxony (1463-1525), Saxon elector
• Frederick I of Denmark (1471-1533), King of Denmark and Norway
• Frederick II of Denmark (1534-1588), King of Denmark and Norway
• Frederick III of Denmark (1609-1670), King of Denmark and Norway
• Frederick IV of Denmark (1671-1730), King of Denmark and Norway
• Frederick V of Denmark (1723-1766), King of Denmark and Norway
• Frederick VI of Denmark (1768-1839), King of Denmark and Norway
• Frederick VII of Denmark (d. 1863), King of Denmark
• Frederick VIII of Denmark (d. 1912), King of Denmark
• Frederick IX of Denmark (1899-1972), King of Denmark
• Frederick I, Holy Roman Emperor (1125-1190), king & emperor
• Frederick II, Holy Roman Emperor (1196-1250), king & emperor
• Frederick III, Holy Roman Emperor (1415-1493), German ruler
• Frederick IV, Elector Palatine (1574-1610), German aristocrat
• Frederick V, Elector Palatine (1619-1620), Bohemian aristocrat
• Frederick II, Elector of Brandenburg (1413-1470), margrave of Brandenburg
• Friedrich Wilhelm I of Brandenburg (1620-1688), Duke of Prussia
• Frederick I of Prussia (1657-1713), Elector of Brandenburg
• Friedrich Wilhelm I of Prussia (1688-1740), King of Prussia
• Frederick II of Prussia (1712-1786), King of Prussia
• Frederick William II of Prussia (1744-1797), King of Prussia
• Frederick William III of Prussia (1770-1840), King of Prussia
• Frederick William IV of Prussia (1795-1861), King of Prussia
• Frederick III of Germany (1831-1888), German Emperor
• Frederick, Prince of Wales (1707-1751), the eldest son of King George II
• Frederick Augustus I of Saxony (1750-1827), Elector and King of Saxony
• Frederick Augustus II of Saxony (1797-1854), King of Saxony
• Frederick Augustus III of Saxony (1865-1932), King of Saxony
• Frederick I of Sweden (1676-1751), King of Sweden
• Frederick I of Württemberg (1754-1816), Duke, Elector, and King of Württemberg
• Frederick, Archbishop of Tyre (died 1173), the sixth Latin archbishop of Tyre

In geography:

• Frederick, Colorado, town in Weld County, Colorado, United States
• Frederick, Maryland, city in Frederick County, Maryland
• Frederick, South Dakota, town in Brown County, South Dakota, United States

In fiction:

• Frederic, main character of the operetta The Pirates of Penzance.
• Frederick (Animal Farm), the owner of Pinchfield Farm
• Frederick Crane, Dr. Frasier Crane's son on Frasier
• Frederick Charles Krueger, central villain of Nightmare on Elm Street
• Frederick Trotteville, the leader of The Five Find-Outers

In sports:

• Frederick S. Biletnikoff, retired American football player
• Frederico Chaves Guedes, Brazilian football plater
• Frederick Terrell Jones, American basketball player
• Frederick Stanley McGriff, Major League Baseball player
• Frederick Spofforth, Australian cricket player
• Frederick Sydney Stolle, Australian tennis player

In music:

• Frédéric Chopin, Polish-French composer
• William Frederick Durst, lead singer of Limp Bizkit
• George Frideric Handel, German composer
• Freddie Mercury, singer of the band Queen
• Fredro Starr, rapper
• Frederick Stewart, American musician, co-founder of Sly & The Family Stone

In literature:

• Frederik van Eeden, Dutch writer and psychiatrist
• Frederick Forsyth, British novelist
• Jan Frederik Helmers, Dutch poet
• Willem Frederik Hermans, Dutch writer

In television and film:

• Federico Fellini, Italian film-maker and director
• Frederick Martin MacMurray, American actor
• Frederick McFeely Rogers, American TV personality
• Frédéric Rossif, French television director

In philosophy:

• Friedrich Engels, German political philosopher
• Friedrich Hayek, Austrian economist and political philosopher
• Friedrich Wilhelm Nietzsche, German existentialist philosopher

In other fields:

• Frederick Austerlitz, American dancer of Austrian origin
• Frederick Coutts, the 8th General of The Salvation Army
• Frederick Douglass, American abolitionist
• Carl Friedrich Gauss, German mathematician
• Sir Frederick Alfred Laker, founder of Laker Airways
• Ferdinand Frederick Henri Moissan, French chemist
• Frédéric Ozanam, French scholar
• Frederick Jackson Turner, American historian

See also:

• Fred
• Freddy

Frederik | Friedrich | Frédéric | Federico | Frigyes | Frederik | フリードリヒ | Fryderyk (imię) | Frederik | Fredrik

Given names