1763 in music
- January 1 - First performance of William Boyce's "At length, th’imperious Lord of War".
- March 24 - Christoph Willibald Gluck leaves Vienna, bound for Bologna where his opera Il trionfo di Clelia is to be premièred.
- April 26 - Gluck is awarded a pension of 600 gulden by Empress Maria Theresa.
- May 14 - Nuovo Teatro Pubblico in Bologna opens with the première of Gluck's Il trionfo di Clelia; it is the first major opera house to be constructed with public funds and owned by the municipality.
- May 26 - In Paris, François-Joseph Gossec goes to court to retrieve property from the estate of his late patron Alexandre Le Riche de La Poupelinière.
- July 9 - Mozart family grand tour: The family of Wolfgang Amadeus Mozart sets out on a European tour, ending this year in Paris.
- James Hook becomes musical director of Marylebone Gardens in London.
- St Cecilia's Hall is opened by Edinburgh Musical Society as the first purpose-built concert hall in Scotland, the second in Britain.
- none listed
- Pietro Guglielmi – Tito Manlio
- Joseph Haydn – Acide
- Niccolò Jommelli - Didone abbandonata (third version)
- Vincenzo Manfredini – Carlo Magno
- Johann Georg Albrechtsberger - Applausus musicus (cantata)
- Joseph Haydn – Symphonies nos. 12 and 13
- Michael Haydn – Symphony in G major "Divertimento"; Symphony in B-flat major, Perger 51 "La Confidenza"
- Georg Philipp Telemann - Gott, man lobet dich in der Stille (cantata)
- February 20 – Adalbert Gyrowetz, composer (died 1850)
- March 18 – Marie Christine Björn, ballerina
- April 7 – Domenico Dragonetti, double bass virtuoso and composer (died 1846)
- May 15 – Franz Danzi, composer (died 1826)
- June 14 – Johann Simon Mayr, composer (died 1845)
- June 22 – Étienne Méhul, composer (died 1817)
- December 12 - Margareta Alströmer, singer and artist (died 1816)
- February 7 – Christoph Schaffrath, composer (born 1709)
- February 12 (buried) – Gottfried Heinrich Bach, keyboardist son of Johann Sebastian Bach (born 1724)
- May 30 – Gustaviana Schröder, Swedish singer (born 1701)
- June 1 – Johann Caspar Vogler, composer
- July 17 – Wenzel Raimund Pirck, composer
- August 14 – Giovanni Battista Somis, composer
- December 2 – Carl August Thielo, composer
- unknown date – Johann Gottlieb Janitsch, composer (born 1708)
- probable - Nicola Logroscino, composer (born 1698)