Chester James (Pop) Chadbourne (October 28, 1884 – June 21, 1943) was an American outfielder in Major League Baseball, playing mainly as a center fielder for three teams between 1906 and 1918.

A fine defensive outfielder, he entered the major leagues in 1906 with the Boston Red Sox, playing for them two years before being sold to the Indianapolis Indians of the American Association in November 1908.

In 1914, Chadbourne became the first major league player to bat at Wrigley Field (then called Weeghman Park), hitting leadoff for the Packers against the Chicago Chi-Feds on April 23.

Chadbourne returned to the minors for the 1916 and 1917 seasons, making his last major league appearance with the Boston Braves in 1918.

Arlett required twelve stitches to his face and the injury may have cost him an opportunity to sign with the Brooklyn Dodgers.