Portsmouth Point is an overture for orchestra by the English composer William Walton, composed in 1925. The work was inspired by Rowlandson's print depicting Portsmouth Point. Walton recalled that the main musical had come into his mind whilst riding on a route 22 bus in London. Walton dedicated the score to the poet Siegfried Sassoon, who had recommended that Oxford University Press publish the score. The score was first published in piano-duet form in 1925. The full orchestral score was published in 1928.