Dezső Antalffy-Zsiross (July 24, 1885, Nagybecskerek - April 29, 1945, Monticello) was a Hungarian organist and composer. He studied with, among others Max Reger, Karl Straube and Enrico Bossi. In Budapest, besides being the resident organist of the Saint Stephen's Basilica he also taught organ at the Franz Liszt Academy of Music. Antalffy-Zsiross later moved to the United States where he worked as the organist of Radio City Music Hall in Rockefeller Center, and as the organist of the New York Philharmonic.