4, "A Vitória" (The Victory) is a composition by the Brazilian composer Heitor Villa-Lobos, written in 1919.

Villa-Lobos composed his Fourth Symphony in Rio de Janeiro in 1919, beginning in October, as the second in a trilogy of programmatic symphonies based on arguments by Luís Gastão d'Escragnolle Dória [pt].

The orchestra consists of: 2 piccolos, 3 flutes, 2 oboes, cor anglais, 2 clarinets, bass clarinet, soprano saxophone, alto saxophone, tenor saxophone, baritone saxophone, 3 bassoons, contrabassoon, 4 horns, 4 trumpets, 4 trombones, tuba, timpani, cymbals, bass drum, drum, side drum, tam-tam, bells, sistrum, small frame drum, chocalho, sleigh bells, triangle, xylophone, celesta, 2 harps, piano, and strings.

There is also a concertino ensemble made up of E♭ clarinet, soprano, alto, and tenor saxophones, euphonium, small frame drum, triangle, cymbals, and bass drum.

The work is in four movements: The Fourth Symphony employs the principle of cyclic form.