Ernest Robert Walker (September 17, 1890 – April 1, 1965) was an American Major League Baseball outfielder who played from 1913 to 1915 with the St. Louis Browns. He batted left and threw right-handed. Walker had a .256 batting average, with 65 career hits.
He was born in Blossburg, Alabama, and died in Pell City, Alabama. His interment was located in Birmingham's Fraternal Cemetery.
Walker was the brother of Major Leaguer Dixie Walker, and the uncle of Major Leaguers Dixie Walker and Harry Walker.