Great Experiment may refer to:
Canada: The Great Experiment, a Canadian educational television show The Great Experiment: Faith and Freedom in America, a book by Karen Lee-Thorp and Os Guinness The Great Experiment: The Story of Ancient Empires, Modern States, and the Quest for a Global Nation, a book by Strobe Talbott The Great Experiment: George Washington and the American Republic, an exhibit at the Huntington Library 1999–2000 "The Great Experiment", an episode in Madam Secretary (season 5)
See also The Grand Experiment, an album by The Neal Morse Band