Sir Clifford Michael Curzon CBE (née Siegenberg; 18 May 1907 – 1 September 1982) was an English classical pianist.

Curzon studied at the Royal Academy of Music in London, and later with Artur Schnabel in Berlin and Wanda Landowska and Nadia Boulanger in Paris. In his early career he was known for his performances of Romantic and virtuoso music, and for championing modern works. Later he concentrated on the German classics, principally Mozart, Beethoven, Schubert and Brahms. He played regularly in continental Europe and North America, making tours in the 1930s and for most of his post-war career.

Although signed to a recording company, Decca, for most of his career, Curzon was not at ease in the studio, and vetoed the release of many of his recordings, some of which were published after his death.