Arthur Bernard Bisguier, born Oct 8, 1929, is an American Grandmaster (1957). He was the winner of the U.S. Junior Championship in 1946 and 1949, U.S. Championship in 1954, winner of three U.S. Opens (1950, 1956, 1959), and represented the U.S. in five Olympiads. He won the U.S. Senior Open in 1989, 1997, and 1998. In 2005, he was named Dean of American Chess.