Hugh Aitken (September 7, 1924 – December 24, 2012) was a 20th-century American composer.
Aitken was born in New York City to Hugh Aitken Sr. and Florence Aitken. He grew up in the Bronx and attended Evander Child High School. There were artists of all kinds in his family; his father was a musician, playing the violin and also composing, his mother danced in vaudeville in her youth, one cousin was a radio, stage, and television actress (Joan Swenson) and another danced in the Balanchine company. He studied chemistry for two years at New York University, but quit to join the Army. He served as a navigator in the Air Force in the Second World War, realized during the War that composing was his true vocation, so he used the GI Bill to enroll at Juilliard from 1946-50. He studied composition under Bernard Wagenaar, Vincent Persichetti, and Robert Ward, receiving a MS degree in 1950. He married Laura Tapia (1924-2017) in 1946. Aitken taught at Juilliard from 1960 until 1970, and was then appointed Professor of Music at William Paterson College in New Jersey. He died at home in Oakland, New Jersey on Dec. 24, 2012. He is survived by children Peter Gil Aitken and Alexandra Elizabeth Aitken.
He received commissions from the National Endowment for the Humanities, the Elizabeth Sprague Coolidge Foundation, the Naumburg Foundation, the Juilliard School, the Concord String Quartet, Yoyo Ma/Emmanuel Ax, and the dancer Jose Limon.
- Fables, an opera based on La Fontaine, (1975).
- Felipe, an opera based on Cervantes (1981) (Review, New York Times) 
- Dance scores, (1949–63)
- Mass settings, (1950, 1964)
- The Revelation of St. John the Divine (1953–90)
- Piano Concerto, (1953)
- violin concertos, (1984, 1988, 1992):
- Symphony, (1998)
- multiple chamber works.
- Aitken, Hugh. The Piece As a Whole: Studies in Holistic Musical Analysis. Westport, Conn: Greenwood Press, 1997 ISBN 9780313029745
- ""Hugh Aitken " Butterworth, Neil, Dictionary of American Classical Composers. 2nd ed. New York and London: Routledge, 2005. ISBN 0-415-93848-1 page 5
- Robert Skinner, "Hugh Aitken" New Grove Dictionary of American Music Macmillan, 1986 p.22-23
- Rockwell, John. "Music View; New Opera may have a Future After all." New York Times: A.1. Jan 02 1983. National Newspapers Premier. Web. 25 Feb. 2013 .