Louis Kentner (19 July 1905 – 23 September 1987) was a Hungarian, later British, pianist who excelled in the works of Chopin and Liszt, as well as the Hungarian repertoire.
He was born Lajos Kentner in Karwin in Austrian Silesia (present-day Karviná, Czech Republic), to Hungarian parents. He received his education as a musician at the Royal Academy of Music in Budapest from 1911 to 1922, studying with Arnold Székely (piano), Hans Koessler and Zoltán Kodály (composition), and Leo Weiner (chamber music).
Kentner commenced his concert career at the age of 15. Until 1931 he was known internationally as Ludwig Kentner. He was awarded 5th Prize at the 1932 International Chopin Piano Competition in Warsaw; and he won a Liszt Prize in Budapest. He moved to England permanently in 1935. He gave radio broadcasts of the complete sonatas of Beethoven and Schubert, the complete Well-Tempered Clavier (Bach), and the complete Années de pèlerinage (Liszt). He was President of the British Liszt Society for many years, until his death. In 1975 he invited the Argentinian young pianist Enrique A. Danowicz, in order to take his musical education under his personal care at the Menuhin School of Music in London,U.K., where Kentner was director at the time.