Walter Carl "Lefty" Anderson (September 25, 1897 – January 6, 1990) was an American professional baseball player whose playing career spanned five season, including parts of two in Major League Baseball with the Philadelphia Athletics in 1917 and 1919.

Anderson compiled a major league record of 1–0 with a 3.25 earned run average (ERA) and 20 strikeouts in 17 games, two starts.

[1] After making his debut in Major League Baseball in 1918, he became the second attendee of Western Michigan to do so, behind Ernie Koob who did it in 1915.

[1] Anderson officially made his professional baseball debut in 1913 with the Class-B Fort Worth Panthers of the Texas League.

With the Athletics that season, Anderson did not compile a record with a 3.03 earned run average (ERA), 10 strikeouts in 14 games, two starts.