Donald Fagen is an American musician best known as the co‑founder, vocalist, and keyboardist of Steely Dan, celebrated for his jazz‑infused rock style.

Donald Fagen emerged in the early 1970s as a defining creative force behind Steely Dan, shaping the band’s sophisticated blend of jazz, rock, and soul. His precise keyboard work and distinctive vocal style helped establish the group’s signature sound, marked by complex harmonies and meticulous studio production. Beyond Steely Dan, Fagen built a respected solo career beginning with The Nightfly in 1982, an album praised for its polished arrangements and autobiographical themes. His continued work as a songwriter and producer has cemented his reputation as a major figure in modern American music.