John Reginald Neville, CM, OBE was an English theatre and film actor who moved to Canada in 1972. He enjoyed a resurgence of international attention in the 1980s as a result of his starring role in Terry Gilliam's The Adventures of Baron Munchausen (1988).

The Adventures of Baron Munchausen is a 1988 adventure fantasy film, cowritten and directed by Terry Gilliam, starring John Neville, Sarah Polley, Eric Idle, Jonathan Pryce, Oliver Reed, Robin Williams and Uma Thurman. An international co-production by the United Kingdom, the United States and Germany, the film is based on the tall tales of the 18th-century German nobleman, Baron Munchausen, and his wartime exploits against the Ottoman Empire.