John George Heileman (August 10, 1872 – July 19, 1940) was an American professional baseball infielder.

He played briefly in Major League Baseball for the 1901 Cincinnati Reds.

[4] However, contemporary newspaper reports from his brief baseball career are only known to have referred to him by his surname,[5] and his death notice made no mention of a nickname.

[3] His son, George, who was also a professional baseball player (although not in the major leagues), was known by that nickname.

This biographical article relating to an American baseball third baseman is a stub.