Edward J. Kelly Democratic
The Chicago mayoral election of 1939 was held on April 5, 1939. The election saw incumbent Edward J. Kelly being reelected to a second full term (third overall term), defeating Dwight H. Green by a double-digit margin.
Both major parties held primary elections to determine their nominees. The primaries were held on February 28, 1939. Kelly won renomination in the Democratic Party primary against Thomas J. Courtney, the Cook County state's attorney. In his candidacy, Courtney had sought to challenge the city's Democratic political machine. In the Republican Party primary, Green won a massive victory over former mayor William Hale Thompson.