Edward William Bonney (August 26, 1807 – February 4, 1864) was a 19th-century adventurer, miller, hotel keeper, city planner, counterfeiter, livery stable keeper, bounty hunter, private detective, postmaster, merchant, soldier, and author. He is best known for his undercover work in exposing the "Banditti of the Prairie", resulting from his investigation of the torture-murder of noted Illinois pioneer and frontiersman, Colonel George Davenport.