1743 in music

	… 1733; 1734; 1735; 1736; 1737; 1738; 1739; ; 1740; 1741; 1742; 1743; 1744; 1745; 1746; ; 1747; 1748; 1749; 1750; 1751; 1752; 1753 …;
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Events

Johann Sebastian Bach examines the organ at the Johanniskirche, Leipzig
March 23 – English premiere of Handel's Messiah in London
1743–1746 Bach revises his St Matthew Passion (two organs used again, but viola da gamba still retained; recitatives revised so that now only the vox Christi recitatives have sustained continuo parts). No evidence of version being performed (version we know today).

Carl Philipp Emanuel Bach – Keyboard Sonata in B minor, H.32.5
William Boyce – Solomon (serenata)
Francesco Geminiani – Pièces de clavecin
Maurice Greene – "Thou visitest the earth" (Song)
Louis-Gabriel Guillemain – 6 Sonates en quatuors, Op. 12
George Frideric Handel
- Samson (oratorio, composed 1741–42, premiered 18 February 1732 at Covent Garden in London)
- Semele, HWV 58 (oratorio, composed 3 June to 4 July, not performed until 1744)
- Joseph and His Brethren, HWV 59
- Te Deum in D major, HWV 283
- Organ Concerto in A major, HWV 307
Niccolò Jommelli – La Betulia liberata (sacred oratorio)
Johann Ludwig Krebs – 6 Trios, Krebs-WV 317-322
James Oswald – Colin's Kisses, a set of 12 songs.
Giovanni Benedetto Platti – 6 Flute Sonatas, Op. 3
Giuseppe Sammartini – 12 Trio Sonatas, Op. 3
Giuseppe Tartini – 12 Violin Sonatas, Op. 2 (at least two other publications are known as Op. 2, including 6 Violin Sonatas from the same year.)
Valentin Rathgeber – Pastorellen für die Weihnachtszeit, R 322

Maurice Greene – 40 Select Anthems in Score
Jean-Marie Leclair – Quatrième livre de sonates, for violin (two alternatively for flute) and basso continuo, Op. 9 (Paris)

February 19 – Luigi Boccherini, composer (died 1805)
May 17 – Christoph Bernhard Verspoell, composer and priest (died 1818)
May 21 – François Duval, dancer
July 6 – Valentin Adamberger, operatic tenor (died 1804)
July 14 – Gavrila Derzhavin, poet (died 1816)
September 30 – Christian Ehregott Weinlig, cantor and composer (died 1813)
October 5 – Giuseppe Gazzaniga, composer (died 1818)
October 10 – Marie-Madeleine Guimard, ballerina (died 1816)
November 18 – Johannes Ewald, librettist and dramatist (died 1781)
December 7 – Johann Joachim Eschenburg, translator (died 1820)
Date unknown
- Charles-Georges Boyer, music publisher (died c. 1806)
- George Saville Carey, librettist and entertainer (died 1807)