Louis James Alfred Lefébure-Wély (13 November 1817 – 31 December 1869) was a French organist and composer. He played a major role in the development of the French symphonic organ style and was closely associated with the organ builder Aristide Cavaillé-Coll, inaugurating many new Cavaillé-Coll organs. His playing was virtuosic, and as a performer he was rated above eminent contemporaries including César Franck. His compositions, less substantial than those of Franck and others, have not held such a prominent place in the repertory.