Jean Gilbert (11 February 1879 – 20 December 1942), born Max Winterfeld, was a German operetta composer and conductor.

Gilbert was born in Hamburg into a family of musicians; his ancestors were cantors of the Jewish community, his cousin Paul Dessau became a famous composer and conductor.

He attended composition lessons held by Philipp Scharwenka in Berlin and studied at the conservatories in Sondershausen and Weimar.

He continued to work as a Kapellmeister at the Berlin Apollo-Theater [de] on Friedrichstraße, where he conducted operettas by Paul Lincke.

His most successful work was Die keusche Susanne (1910), which was also popular in an English adaptation as The Girl in the Taxi.