Ss. Simon and Jude is a Catholic parish located in Gillespie, Illinois. The congregation was formally organized in 1879, and a mission church was built at the current site, with the first Mass celebrated on January 1, 1880. The church was officially dedicated in November 1883 in memory of the Apostles Saints Simon and Jude. Over the years, the parish has adapted to changes in the community, including periods of growth driven by local industries.