John Towner Williams KBE (* 8. Februar 1932 in Flushing, Queens, New York City, New York) ist ein US-amerikanischer Komponist, Dirigent und Produzent von Film- und Orchestermusik. Der mehrfache Oscar- und Grammy-Gewinner zählt seit den 1970er-Jahren zu den weltweit bekanntesten, erfolgreichsten und einflussreichsten Filmkomponisten. Er arbeitete mit Regisseuren wie Steven Spielberg (u. a. Der weiße Hai, Indiana Jones, E.T. – Der Außerirdische, Schindlers Liste, Jurassic Park, Der Soldat James Ryan, A.I. – Künstliche Intelligenz, Minority Report, Catch Me If You Can), George Lucas (Star Wars) und Alfred Hitchcock (Familiengrab) zusammen. Ebenso komponierte er die Musik zu den ersten drei Filmen der Harry-Potter-Reihe. Mit seinem Album The Berlin Concert erreichte er im Alter von 90 Jahren zusammen mit den Berliner Philharmonikern Platz Eins der deutschen Albumcharts.

John Towner Williams (born February 8, 1932) is an American composer, conductor, and pianist. Widely regarded as one of the greatest American composers of all time, he has composed some of the most popular, recognizable, and critically acclaimed film scores in cinematic history in a career spanning over six decades. Williams has won 24 Grammy Awards, seven British Academy Film Awards, five Academy Awards, and four Golden Globe Awards. With 51 Academy Award nominations, he is the second most-nominated individual, after Walt Disney. In 2005, the American Film Institute selected Williams's score to 1977's Star Wars as the greatest American film score of all time. The soundtrack to Star Wars was additionally preserved by the Library of Congress into the National Recording Registry for being "culturally, historically, or aesthetically significant".

Williams has composed for many critically acclaimed and popular movies, including the Star Wars series, Jaws, Close Encounters of the Third Kind, Superman, E.T. the Extra-Terrestrial, the Indiana Jones series, the first two Home Alone films, Hook, the first two Jurassic Park films, Schindler's List, and the first three Harry Potter films. He has been associated with director Steven Spielberg since 1974, composing music for all but four of his feature films––Duel, The Color Purple, Bridge of Spies and Ready Player One. Other works by Williams include theme music for the 1984 Summer Olympic Games, NBC Sunday Night Football, "The Mission" theme used by NBC News and Seven News in Australia, the television series Lost in Space and Land of the Giants, and the incidental music for the first season of Gilligan's Island.

Williams has also composed numerous classical concertos and other works for orchestral ensembles and solo instruments. He served as the Boston Pops's principal conductor from 1980 to 1993, and is its laureate conductor. He was inducted into the Hollywood Bowl's Hall of Fame in 2000, and was a recipient of the Kennedy Center Honors in 2004 and the AFI Life Achievement Award in 2016. Williams composed the score for eight of the top 20 highest-grossing films at the U.S. box office (adjusted for inflation).