Irwinville is an unincorporated community in Irwin County, Georgia, United States. Irwinville was founded as "Irwinsville" in 1831 as the seat for the newly formed Irwin County. The community was named for Georgia governor Jared Irwin. It was renamed to Irwinville when it was incorporated as a town in 1857. In 1907, the seat of Irwin County was transferred from Irwinville to Ocilla.