Jacques François Antoine Marie Ibert (15 August 1890 – 5 February 1962) was a French composer of classical music.
Having studied music from an early age, he studied at the Paris Conservatoire and won its top prize, the Prix de Rome at his first attempt, despite studies interrupted by his service in World War I.
Ibert pursued a successful composing career, writing (sometimes in collaboration with other composers) seven operas, five ballets, incidental music for plays and films, works for piano solo, choral works, and chamber music.
He is probably best remembered for his orchestral works including Divertissement (1930) and Escales (1922).
As a composer, Ibert did not attach himself to any of the prevalent genres of music of his time, and has been described as an eclectic.