Walter William Kinney (September 9, 1893 – July 1, 1971) was a pitcher in Major League Baseball who played for the Boston Red Sox (1918) and Philadelphia Athletics (1919–20, 1923). Kinney batted and threw left-handed. He was born in Denison, Texas.
In a four-season career, Kinney posted an 11–20 record with 129 strikeouts and a 3.59 earned run average in 290+2⁄3 innings pitched.
He was a better than average hitting pitcher, posting a .280 batting average (35-for-125) with 17 runs, 2 home runs, 18 RBI and 12 bases on balls.
Kinney died in Escondido, California, at the age of 77.