Piano Sonata no. 3 in E major, D.459

The Piano Sonata in E major, D 459, is a work for solo piano, composed by Franz Schubert in August 1816. It was first published in 1843, after the composer's death, by Carl August Klemm in Leipzig, in a publication known as Fünf Klavierstücke (Five Piano Pieces).

In the first edition of the Deutsch catalogue all five pieces were grouped under the same number 459. Whether it is a single composition in 5 movements is a matter of contention. From the second edition of the Deutsch catalogue the three last pieces of the set were split off as D 459A, Drei Klavierstücke (Three Piano Pieces), with only the two first movements regarded as belonging to the same sonata, D 459.