Walter Kingsley Irwin (September 23, 1897 – August 18, 1976) was a Major League Baseball player. Irwin played for St. Louis Cardinals in 1921 as pinch runner and pinch hitter in 4 games.

Irvin was born in Henrietta, Pennsylvania, and died in Spring Lake, Michigan.

• Career statistics from Baseball Reference, or Baseball Reference (Minors)

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