Jimmie David Post (October 28, 1939 – September 14, 2022) was an American folk singer-songwriter, composer, and playwright.

In 1968, his pop song "Reach out of the Darkness" charted on the Billboard Hot 100 for 14 weeks, peaking at number 10.

Post was a regular performer at the Earl of Old Town and other Chicago folk music bars, and was a contemporary of notable singer-songwriters Steve Goodman, John Prine, Fred Holstein, and Bonnie Koloc, and a frequent collaborator with singer-songwriter and multi-instrumentalist Mick Scott and Tom Dundee.

In 1971, he produced and played on an album of Chicago folk musicians, Gathering at the Earl of Old Town, that included the first recording of Goodman's "City of New Orleans".

[3] Starting in 1985, he hosted the Flea Market folk show played on WBEZ live at Navy Pier.