Charles Henry Hackley (January 3, 1837 – February 10, 1905) was an American timber businessman and philanthropist.

Later on (with business partner Thomas Hume) he opened the Hackley-Hume Lumber Mill on Muskegon Lake in 1854.

While many lumber mill owners moved their operations to the Pacific Northwest, Hackley remained in Muskegon and focused on urban revitalization of that city.

He makes money largely through the labor of his employees....Moreover, I believe that it should be expended during the lifetime of the donor, so that he can see that his benefactions do not miscarry and are according to his intent....To a certain extent, I agree with Mr. Carnegie....that it is a crime to die rich."

Hackley is not only credited with his gifts to the city but also stopping the ebb of people leaving Muskegon for jobs elsewhere after the lumber industry folded.

Despite donating enormous sums of money in his lifetime, Hackley still managed a net worth of over $18,000,000 (roughly $600,000,000 in 2022).