Charles Henry Wacker (August 29, 1856 – October 31, 1929) was an American businessman and philanthropist.

His work to promote the plan included addresses, obtaining wide publicity from newspapers, and publishing Wacker's Manual of the Plan of Chicago (by Walter D. Moody) as a textbook for local schoolchildren.

[1] His father Frederick Wacker, a brewer, was born in Württemberg, Germany.

He was later president of the McAvoy Brewing Company, and director of the Chicago Heights Land Association, Corn Exchange National Bank, Chicago Title and Trust Company, and South Elevator Company,[3] and was part of a consortium of Chicago brewers who underwrote the methods that facilitated the commercialization of refrigeration machines.

[1] He died at his home in Lake Geneva, Wisconsin, on October 31, 1929, and was buried at Graceland Cemetery in Chicago.