Jörg Wolfgang Demus (2 December 1928 – 16 April 2019) was an Austrian classical pianist who appeared internationally and made many recordings.

He played with singers such as Elisabeth Schwarzkopf and Dietrich Fischer-Dieskau, as a piano duo with Paul Badura-Skoda, and with string players such as Josef Suk and Antonio Janigro.

Five years later, at the age of 11, he entered the Vienna Academy of Music, studying piano, composition and conducting.

[5] He made his debut as a pianist when he was still a student: at the age of 15,[6] he played in the Brahms-Saal of the prestigious Gesellschaft der Musikfreunde[1][7] Bach's Das wohltemperierte Klavier.

In 1953 he further studied interpretation with Wilhelm Kempff, Arturo Benedetti Michelangeli, and Edwin Fischer, and attended master classes with Walter Gieseking.

[9] Demus was active as a lied accompanist and a chamber music partner, appearing with singers such as Elisabeth Schwarzkopf, Dietrich Fischer-Dieskau,[5] Elly Ameling and Peter Schreier, and with string players such as Josef Suk and Antonio Janigro.

[5] Demus collaborated with Paul Badura-Skoda on the concert platform and on a book concerning the interpretation of Beethoven's piano sonatas.

[14] He recorded several of his own compositions with cellist Maria Kliegel, including Poetische Sonate (Poetic Sonata) in G minor, Op.