Piano Sonata No. 1

Piano Sonata No. 1 is the default title for a composer's first (or only) piano sonata. Among many other works, it may refer to:

• Piano Sonata (Bartók), Sz. 80, by Béla Bartók
• Piano Sonata No. 1 (Beethoven), Op. 2, No. 1, by Ludwig van Beethoven
• Piano Sonata No. 1 (Boulez), 1946, by Pierre Boulez
• Piano Sonata No. 1 (Brahms), Op. 1, by Johannes Brahms
• Piano Sonata No. 1 (Chopin), Op. 4, by Frédéric Chopin
• Piano Sonata (Grieg), Op. 7, by Edvard Grieg
• Piano Sonata (Liszt), S. 178, by Franz Liszt
• Piano Sonata No. 1 (Rachmaninoff), Op. 28, by Sergei Rachmaninoff
• Piano Sonata No. 1 (Scriabin), Op. 6, by Alexander Scriabin
• Piano Sonata No. 1 (Vine), 1990, by Carl Vine
• Piano Sonata No. 1 (Hindemith), by Paul Hindemith

or possibly

• 1. X. 1905 (also "Sonata"), by Leoš Janáček