War Sonata may refer to:
One of three sonatas by Sergei Prokofiev Piano Sonata No. 6 (Prokofiev) (1940) Piano Sonata No. 7 (Prokofiev) (1942) Piano Sonata No. 8 (Prokofiev) (1944) Piano Sonata No. 2 (Kabalevsky) (1945), by Dmitry Kabalevsky Ninth Sonata in A minor, Op. 30 (circa 1914-1917), by Nikolai Medtner Sonate (D-Dur) (Kriegssonate) für Klavier, Op. 19, by Botho Sigwart zu Eulenburg (died September 1915)