The Violin Sonata in G minor, L 140, for violin and piano was composed by Claude Debussy in 1917. It was the composer's last major composition and the third work in what had originally been conceived as a cycle of six sonatas for various instruments (the first two being the cello sonata, L 135, and the sonata for flute, viola and harp, L 137). The work is notable for its brevity; a typical performance lasts about 13 minutes. The premiere took place on 5 May 1917, the violin part played by Gaston Poulet, with Debussy himself at the piano. It was his last public performance.