George Patterson Nigh (born June 9, 1927) is an American politician and civic leader from the U.S. state of Oklahoma. Nigh served as the 17th and the 22nd governor of Oklahoma and as the eighth and tenth lieutenant governor of Oklahoma. He was the first Oklahoma governor to be re-elected and the first to win all 77 counties in the state. Additionally, short term vacancies in the governor's office twice resulted in Nigh assuming gubernatorial duties while serving as lieutenant governor.

Following his service as governor, Nigh served on the board of directors of JCPenney and as president of the University of Central Oklahoma and as director and public relations advisor for International Bank of Commerce. Prior to his election to statewide office, he worked as a teacher and legislator. Since the death of John M. Patterson of Alabama in June 2021, Nigh has been the earliest-serving former governor in the United States.