Robert Matthews (1788–c. 1841) was an American religious figure who gathered a cult-like following in 1830s New York. He created a small utopian commune in the "Burned-Over District" of New York that became known as The Kingdom. He met Joseph Smith in 1835, a meeting which resulted in the two men decrying the other as "satanic" and frauds. He attracted a number of influential followers including wealthy businessmen and Sojourner Truth.
A book, The Kingdom of Matthias: A Story of Sex and Salvation in 19th-Century America, details his life and the cult that he established.
- Paul E. Johnson and Sean Wilentz, The Kingdom of Matthias: A Story of Sex and Salvation in 19th-Century America, New York: Oxford University Press, 1994 (ISBN 0-19-509835-8)