John Charles Haines (born: May 26, 1818 in New York; died: July 4, 1896; buried in Rosehill Cemetery) served as mayor of Chicago, Illinois (1858-1860) for the Democratic Party.

Haines arrived in Chicago on May 26, 1835 and took on work as a clerk for George W. Merrill . by 1846, he formed a partnership with Jared Gage and acquired several flour mills. Haines worked to organize the Chicago waterwork beginning in 1854. He served two sequential terms as mayor of Chicago.

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