Autry DeWalt Mixon Jr. (June 14, 1931 – November 23, 1995), known professionally as Junior Walker, was an American multi-instrumentalist (primarily saxophonist) and vocalist who recorded for Motown during the 1960s. He also performed as a session and live-performing saxophonist with the band Foreigner during the 1980s.

Walker was born Autry DeWalt Mixon Jr. on June 14, 1931, in Blytheville, Arkansas, but grew up in South Bend, Indiana. He began playing saxophone while in high school, and his saxophone style was the anchor for the sound of the bands he later played in.

His career started when he developed his own band in the mid-1950s as the Jumping Jacks. His longtime friend and drummer Billy Nicks (1935–2017) formed his own group, the Rhythm Rockers. Periodically, Nicks would sit in on Jumping Jack’s shows, and Walker would sit in on the Rhythm Rockers shows.