Frederick may refer to:
People
- Frederick (given name), the name
Given name
Nobility
Anhalt-Harzgerode
- Frederick, Prince of Anhalt-Harzgerode (1613–1670)
Austria
- Frederick I, Duke of Austria (Babenberg), Duke of Austria from 1195 to 1198
- Frederick II, Duke of Austria (1219–1246), last Duke of Austria from the Babenberg dynasty
- Frederick the Fair (Frederick I of Austria (Habsburg), 1286–1330), Duke of Austria and King of the Romans
Baden
- Frederick I, Grand Duke of Baden (1826–1907), Grand Duke of Baden
- Frederick II, Grand Duke of Baden (1857–1928), Grand Duke of Baden
Bohemia
- Frederick, Duke of Bohemia (died 1189), Duke of Olomouc and Bohemia
Britain
- Frederick, Prince of Wales (1707–1751), eldest son of King George II of Great Britain
Brandenburg/Prussia
- Frederick I, Elector of Brandenburg (1371–1440), also known as Frederick VI, Burgrave of Nuremberg
- Frederick II, Elector of Brandenburg (1413–1470), Margrave of Brandenburg
- Frederick William, Elector of Brandenburg (1620–1688), Duke of Prussia
- Frederick I of Prussia (1657–1713), Elector of Brandenburg
- Frederick II of Prussia (1712–1786), King of Prussia, Frederick the Great
- Frederick III, German Emperor (Frederick III of Prussia, 1831–1888), German emperor and King of Prussia
- Frederick William I of Prussia (1688–1740), 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
Denmark
- 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 (1808–1863), King of Denmark
- Frederik VIII of Denmark (1843–1912), King of Denmark
- Frederik IX of Denmark (1899–1972), King of Denmark
- Frederik X of Denmark (born 1968), King of Denmark
- Frederik Raben-Levetzau (1850–1933), Danish count and politician
Holy Roman Empire
- 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
Mantua
Naples
- Frederick of Naples (1452–1504), King of Naples
Nuremberg
- Frederick III, Burgrave of Nuremberg (c. 1220–1297)
- Frederick IV, Burgrave of Nuremberg (1287–1332)
- Frederick V, Burgrave of Nuremberg (died 1398)
Palatinate
- Frederick IV, Elector Palatine (1574–1610), German aristocrat
- Frederick V of the Palatinate (1619–1620), Bohemian aristocrat
Saxony
- Frederick III, Elector of Saxony (1463–1525), known as Frederick the Wise
- 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
Sweden
- Frederick I of Sweden (1676–1751), King of Sweden
Württemberg
- Frederick I of Württemberg (1754–1816), Duke, Elector, and King of Württemberg
Given name
- Frederick of Utrecht (c. 780–834/838), saint, bishop of Utrecht
- Frederick Banting (1891–1941), Canadian doctor who co-discovered insulin
- Fredrick de Silva (1912–1993), Sri Lankan lawyer and politician
- Fred Dibnah (1938–2004), English steeplejack and television personality
- Frederick Douglass (1818–1891), American abolitionist, editor, orator, author, statesman and reformer
- Frederick Augustus Forbes (1818–1878), Australian politician
- Frederick Forsyth (born 1938), British novelist
- Freddy Stephen Fuller, Canadian ex-amateur boxer 666
- Fred Hollows (1929–1993), Australian ophthalmologist and philanthropist
- Frederick Pei Li (1940–2015), American physician and co-discoverer of Li-Fraumeni syndrome
- Frederik Magle (born 1977), Danish composer
- Frederick Norris (1921–2006), British marathon runner
- Frederick de la Roche (died 1173), the sixth Latin archbishop of Tyre
- Frederick Segura (born 1979), Venezuelan track and road cyclist
- Frederick Skiff (1867–1947), American author, collector and bibliophile
- Fred "Sonic" Smith (1949–1994), guitarist of American rock band MC5
- Frederick Varley (1881–1969), painter
- Frederik (singer), (1945), stage name of Finnish singer Ilkka Juhani Sysimetsä, also known as Reetu
Surname
- Dave Frederick, American sportswriter and coach
- Sabrina Frederick (born 1996), Australian rules footballer
Fictional people
- Frederick (Animal Farm), the owner of Pinchfield Farm in the novel by George Orwell
- Frederick Gaylord Crane, fictional child of Lilith and Frasier Crane on the American TV shows "Cheers" and "Frasier"
- Emperor Frederick, the evil emperor in the Dune II game
Places
United States
- Frederick, Colorado, a town in Weld County
- Frederick, Kansas, a town
- Frederick County, Maryland
- Frederick, Maryland, a city in Frederick County
- Frederick, Michigan, a ghost town
- Frederick, Ohio, an unincorporated community
- Frederick, Oklahoma, a city in Tillman County
- Frederick, South Dakota, a town in Brown County
- Frederick County, Virginia
- Frederick Creek (disambiguation), several streams
- Frederick Sound, a sound in Alaska
Canada
- Frederick, Ontario
- Frederick Sound (Canada), a sound in British Columbia
Other uses
- Frederic (band), a Japanese rock band from Kobe
- Frederick (fictional character), the mouse protagonist of the eponymous 1968 children's book by Leo Lionni
- Frederick (horse), a racehorse
- Frederick (ship), several ships
- "Frederick" (song) by Patti Smith