The Marguerite Long–Jacques Thibaud Competition is an international classical music competition for pianists and violinists that has been held in France since 1943. It was created by the pianist Marguerite Long and the violinist Jacques Thibaud. Thibaud died in 1953, Long in 1966.
The competition was initially triennial, but from 1949 it was held biennially. In 1980, it was split into two contests, where pianists compete only against other pianists, and violinists only against other violinists. Previously, violinists and pianists had competed against each other. That year, it reverted to a triennial competition. In 2007, it became biennial once more, and in 2011, under its new name, it became triennial again.
Other notable prize winners include: Paul Badura-Skoda, Dimitri Bashkirov, Anshel Brusilow, Alexandre Brussilovsky, Stanislav Bunin, Olivier Cazal, Jean-Philippe Collard, Youri Egorov, Arnold Eidus, Philippe Entremont, Victor Eresko, Vladimir Feltsman, Christian Ferras, Peter Frankl, Nana Jashvili, Marina Goglidze-Mdivani, György Pauk, Nelli Shkolnikova, Raphael Sobolevsky, Vladimir Spivakov, Gabriel Tacchino, Tamás Vásáry, Vladimir Viardo, and Jean-Pierre Wallez and Oxana Yablonskaya.