Robert Eugene Byrne (April 20, 1928 – April 12, 2013) was an American chess Grandmaster and chess author. He won the U.S. Championship in 1972, and was a World Chess Championship Candidate in 1974. Byrne represented the United States nine times in Chess Olympiads from 1952 to 1976 and won seven medals. He was the chess columnist from 1972 to 2006 for the New York Times, which ran his final column (a recounting of his 1952 victory over David Bronstein) on November 12, 2006. Byrne worked as a university professor for many years, before becoming a chess professional in the early 1970s.
Byrne and his younger brother Donald grew up in New York City and were among the "Collins Kids", promising young players who benefited from the instruction and encouragement of John W. Collins. Both ultimately became college professors and among the leading chess players in the country. They were part of a talented new generation of young American masters, which also included Larry Evans, Arthur Bisguier, and George Kramer.
Robert Byrne's first Master event was Ventnor City 1945, where he scored a respectable 4/9 to place 8th; the winner was Weaver Adams. He tied 1st–2nd in the Premier Reserves section at the U.S. Open Chess Championship, Pittsburgh 1946. College studies limited his opportunities for the next several years; he represented the U.S. in a 1950 radio match against Yugoslavia. In the Maurice Wertheim Memorial, New York 1951, Robert Byrne scored 6/11 for a tied 6–7th place; this was a Grandmaster round-robin with 6 of the world's top 36 players, and it was won by Samuel Reshevsky.