Felice Giardini (April 12, 1716 – June 8, 1796) was an Italian composer and violinist.
Felice Giardini was born in Turin. When it became clear that he was a child prodigy, his father sent him to Milan. There he studied singing, harpsichord and violin but it was on the latter that he became a famous virtuoso. By the age of 12, he was already playing in theater orchestras. In a famous incident about this time, Giardini, who was serving as assistant concertmaster (i.e. leader of the orchestra) during an opera, played a solo passage for violin which the composer Niccolò Jommelli had written. He decided to show off his skills and improvised several bravura variations which Jommelli had not written. Although the audience applauded loudly, Jommelli, who happened to be there, was not pleased and suddenly stood up and slapped the young man in the face. Giardini, years later, remarked, “it was the most instructive lesson I ever received from a great artist."
During the 1750s, Giardini toured Europe as a violinist, scoring successes in Paris, Berlin, and especially in England, where he eventually settled. For many years, he served as the orchestra leader and director of the Italian Opera in London and gave solo concerts under the auspices of J. C. Bach with whom he was a close friend. He directed the orchestra at the London Pantheon. From the mid-1750s to the end of the 1760s, he was widely regarded as the greatest musical performing artist before the public. His identity with the Signor Giardini, who in 1774 sought with Dr Charles Burney to form a public music school associated with the Foundling Hospital is uncertain. In 1784, he returned to Naples to run a theater, but encountered financial setbacks. In 1793, he returned to England to try his luck. But times had changed, and he was no longer remembered. He then went to Russia, but again had little luck, dying in Moscow in 1796.