Donald Byrne (born in New York on June 12, 1930 - died in Philadelphia on April 8 1976) was one of the strongest chess players of the USA in the 1950s and 1960s.
He won the U. S. Open in 1953. He surprised poeple by dominating the Russian Yuri Averbakh 3-1 during the USA-USSR match in Moscow in 1954. Byrne loses against the young Bobby Fischer at the famous Party of the Century in 1956, Fischer was then 13 years old.
In 1962 he was upgraded to International Master by the International Chess Federation. He took part in five chess Olympics for USA as a player or coach between 1962 and 1972. His older brother, GM Robert Byrne, was also a great player at that time.
Byrne is a professor of English at the University of Pennsylvania from 1961 until his death in 1976 as a result of complications of lupus. He is recorded as posthumously into the Hall of Fame of American Chess players in 2002.