Louis James Alfred Lefébure-Wély (November 13, 1817, Paris ? December 31, 1869, Paris) was a French organist and composer.
Lefébure-Wély played a major role in the development of the French symphonic organ style and was a close friend of the organ builder Aristide Cavaillé-Coll, inaugurating many new Cavaillé-Coll organs. He was organist at the Parisian churches of Saint-Roch (1841-1846), the Église de la Madeleine (1847-1857), and Saint-Sulpice (1863-1869). He is the dedicatee of the 12 studies for organ pedals alone by Charles-Valentin Alkan; it has been suggested that this was a sly mockery on Alkan's part[citation needed].
Lefébure-Wély is buried in the Père Lachaise cemetery in Paris.