Alberto Jonás (June 8, 1868, Madrid – November 10, 1943, Philadelphia) was a Spanish pianist, composer, and piano pedagogue. Although not much is known about his life, as a pianist he was regarded as a virtuoso on the level of Ignacy Jan Paderewski, Moriz Rosenthal, Leopold Godowsky, Josef Hofmann, and Josef Lhévinne. He also ranked, during the 1920s and '30s, among the greatest and most sought-after keyboard pedagogues of the time.