John Anthony Mostil (June 1, 1896 – December 10, 1970) was an American professional baseball center fielder.

He started his professional baseball career in 1918 with the Chicago White Sox of the American League (AL).

[1] Mostil then spent two seasons with the American Association's Milwaukee Brewers.

[1] In 1925, Mostil batted .299 and led the AL with 716 plate appearances, 135 runs scored, 43 stolen bases, and 90 walks.

[1] In March 1927, Mostil attempted suicide by cutting himself multiple times with a pocketknife and a razor.