Violin Concerto No. 4 in D major, K. 218, was composed by Wolfgang Amadeus Mozart in 1775 in Salzburg. The autograph of the score is preserved in the Biblioteka Jagiellońska, Kraków. The concerto has the usual fast-slow-fast structure and lasts around 23 minutes. The piece was first published in 1807 in Offenbach by Johann André.
