Jean Becker (May 11, 1833 – October 10, 1884) was a German violinist from Mannheim in the Grand Duchy of Baden.
He studied with Aloys Kettenus and Vincenz Lachner.
After a short period as a conductor at Mannheim, he entered upon a series of concert tours (1858).
He finally settled in Florence, Italy, where he was the founder and first violinist of the Florentine Quartet which was famous throughout the world at the time.
During his career, Becker toured extensively, both as a solo virtuoso, and later, using a Stradivarius violin (made 1685), as a chamber music performer.