Unity Temple is a Unitarian Universalist church building that houses the Unity Temple Unitarian Universalist Congregation at 875 Lake Street in Oak Park, Illinois, United States. The structure, designed by the architect Frank Lloyd Wright in the Prairie style, is cited as an early example of modern architecture. The building consists of an auditorium to the north and a church house called Unity House to the south. The two sections, and an entrance pavilion between them, are made of reinforced concrete.