Jonathan Luther Jackson is an American politician, businessman, and activist serving as the U.S. representative for Illinois's 1st congressional district since 2023. A member of the Democratic Party, he was previously the national spokesman for the Rainbow/PUSH Coalition, a financial analyst, and a partner in the Chicago-based beer distributorship River North Sales and Service.

Illinois's first congressional district is a congressional district in the U.S. state of Illinois. Based in Cook County, the district includes much of the South Side of Chicago and continues southwest to Joliet.