Castle (surname)
Castle is a surname. Notable people with the surname include:
- Andrew Castle, British television presenter and former tennis professional
- Barbara Castle, British politician
- Charles Castle (1939–2013), South-African-born British tap dancer and television producer
- Eduard Castle, Austrian-German professor of German studies
- Guy W. S. Castle (1879-1919), United States Navy officer and Medal of Honor recipient
- Jo Ann Castle, American ragtime pianist
- John Castle, British actor
- John Castle (baseball) (1879–1929), American baseball player
- Keisha Castle-Hughes, New Zealand actress
- Louis Castle, American co-founder of Westwood Studios
- Michael Castle, American lawyer and politician, Governor and Congressman from Delaware
- Nick Castle, film director
- Peggie Castle, American actress
- Peter Castle (born 1987), footballer
- Roy Castle, English entertainer
- Steve Castle (born 1966), English footballer
- Vernon and Irene Castle, husband and wife ballroom dancers
- Wendell Castle (born 1932), American furniture artist
- William Castle, American director, producer and actor
- William B. Castle (1814-1872), American politician
- William B. Castle (hematologist) (1897-1990), American hematologist, son of William E. Castle
- William E. Castle (1867-1962), eminent early American geneticist
Fictional characters:
- Richard Castle, on the television series Castle
- Frank Castle, aka the Punisher