British-born American pianist who introduced to the United States works by Claude Debussy, Maurice Ravel, and César Franck. His playing combined traits of both 19th-century Romanticism and 20th-century restraint and was noted for its sensitivity, free approach to the printed note, and lack of egocentricity.

Bauer was originally a concert violinist until about age 19, when he began serious study of the piano; in both instruments he was almost completely self-taught. He toured widely from 1893 and became a U.S. citizen in 1921.

Bauer frequently appeared in trios, as with Pablo Casals and Fritz Kreisler, and in joint recitals, as with the violinist Jacques Thibaud. His extensive repertory included 17th- and 18th-century harpsichord and clavichord works as well as the standard piano works. He wrote an autobiography, Harold Bauer: His Book (1948), and transcribed many works for piano.