Giovanni Stefano Carbonelli (c. 9 March 1690/1691, Leghorn – 1772, London), after 1734 Anglicised to John Stephen Carbonell, was an Italian-born British composer and violinist, who later abandoned his musical career to become a vintner under royal patronage.
Giovanni Stefano Carbonelli was born in the Italian port city of Leghorn (Livorno) to Pietro Carboneu (alternatively Carboneo or Carbonell) and Teresa Cocchi.
In 1711 and 1712, he was one of the violinists in the local ensemble during the celebrations of the Feast of Santa Croce in Lucca (13–14 September); on these occasions his name was recorded as "Gio: Stefano Carbonèo".
[2] In 1719, Carbonelli was invited to Britain by his patron John Manners, the Marquess of Granby (later the 3rd Duke of Rutland), who was a director of the then newly-formed Royal Academy of Music.
Their relative neglect until quite recently may be attributable to the somewhat grudging approval of them by the music historian Charles Burney, as well as the lack of any other surviving works by the composer.