Pettit Memorial Chapel or simply, Pettit Chapel, is one of the few chapels designed by architect Frank Lloyd Wright. The Pettit Chapel is located in the Belvidere Cemetery in Belvidere, Illinois, United States, which is in Boone County. It was listed on the U.S. National Register of Historic Places on December 1, 1978. The chapel is an early example of Frank Lloyd Wright's famed Prairie style. It is one of only two structures meant for a cemetery setting that Wright ever created.