Francis Augustine Deleglise (February 10, 1835 – March 25, 1894) was a Swiss American immigrant, surveyor, and businessman. He was one of the first settlers at what is now Antigo, Wisconsin, and he represented Florence, Forest, and Langlade counties in the Wisconsin State Assembly in the 1893 session. During the American Civil War, he served in the famed Iron Brigade of the Army of the Potomac and was wounded at Antietam and Gettysburg.