Walter Carl Becker (February 20, 1950 – September 3, 2017) was an American musician, songwriter, and record producer. He was the co-founder, guitarist, bassist, and co-songwriter of the jazz rock band Steely Dan.

Becker met future songwriting partner Donald Fagen while they were students at Bard College. After a brief period of activity in New York City, the two moved to Los Angeles in 1971 and formed the nucleus of Steely Dan, which enjoyed a critically and commercially successful ten-year career. Following the group's dissolution, Becker moved to Hawaii and reduced his musical activity, working primarily as a record producer.