Ludwig van Beethoven wrote 32 complete sonatas for solo piano. Given below are the sonata number, key, opus number and the dedicatee respectively. The sonatas which has marked as the dedicatee unknown; is not recorded on the score or not dedicated to a particular person.

• Piano Sonata No. 1 in F minor Op.2 No.1: Franz Joseph Haydn
• Piano Sonata No. 2 in A major Op.2 No.2: Franz Joseph Haydn
• Piano Sonata No. 3 in C major Op.2 No.3: Franz Joseph Haydn
• Piano Sonata No. 4 in E flat major Op.7 : Countess Barbara von Keglevics
• Piano Sonata No. 5 in C minor Op.10 No.1: Countess Anna Margarete Browne
• Piano Sonata No. 6 in F major Op.10 No.2: Countess Anna Margarete Browne
• Piano Sonata No. 7 in D major Op.10 No.3: Countess Anna Margarete Browne
• Piano Sonata No. 8 in C minor: "Pathétique" Op.13: Prince Karl Lichnowsky
• Piano Sonata No. 9 in E major Op.14 No.1: Baroness Josephine von Braun
• Piano Sonata No. 10 in G major Op.14 No.2: Baroness Josephine von Braun
• Piano Sonata No. 11 in B flat major Op.22: Count Johann Georg Browne
• Piano Sonata No. 12 in A flat major Op.26: Prince Karl Lichnowsky
• Piano Sonata No. 13 in E flat major: "Sonata quasi una Fantasia" Op.27 No.1: Princess von Leichtenstein
• Piano Sonata No. 14 in C sharp minor: "Mondschein-Sonate" (Moonlight) Op.27 No.2: Countess Giulietta Guicciardi
• Piano Sonata No. 15 in D major: "Pastorale" Op.28: Joseph Sonnenfels
• Piano Sonata No. 16 in G major Op.31 No.1: Unknown
• Piano Sonata No. 17 in D minor: "Sturm-Sonate" (Tempest): Unknown
• Piano Sonata No. 18 in E flat major: Unknown
• (Easy) Piano Sonata No. 19 in G minor: Unknown
• (Easy) Piano Sonata No. 20 in G major: Unknown
• Piano Sonata No. 21 in C major: "Waldstein-Sonate" Op.53: Count Ferdinand von Waldstein
• Piano Sonata No. 22 in F major: Unknown
• Piano Sonata No. 23 in F minor: "Appassionata" Op.57: Count Anatol Brunsvik
• Piano Sonata No. 24 in F sharp major: "À Thérèse" Op.78: Therese Brunsvik
• Piano Sonata No. 25 in G major: Unknown
• Piano Sonata No. 26 in E flat major: "Les Adieux" Op.81 No.1 (Op.81a): Archduke Rudolph
• Piano Sonata No. 27 in E minor Op.90: Count Moritz Lichnowsky
• Piano Sonata No. 28 in A major Op.101: Baroness Dorothea von Ertmann
• Piano Sonata No. 29 in B flat major: "Hammerklavier-Sonate" Op.106: Archduke Rudolph
• Piano Sonata No. 30 in E major Op.109: Maximiliane Brentan
• Piano Sonata No. 31 in A flat major Op.110: Unknown
• Piano Sonata No. 32 in C minor Op.111: Archduke Rudolph