William Gerard (Bill) Robertie (born in Cambridge, Massachusetts, United States on July 9, 1946) is a backgammon, chess, and poker player, author and teacher. He is one of several (6 as of 2022) backgammon players to have won the World Backgammon Championship twice (in 1983 and in 1987). Besides the World Championship wins in Monte Carlo, Robertie's major tournament victories include Boston (1979, 1991), Las Vegas (1980, 2001), the New York Metro Open (2011, 2013), the Bahamas Pro-Am (1993), Istanbul (1994) and the Isle of Man Super-Jackpot (1984). In chess, Robertie won the 1970 U.S. Speed Chess Championship.[1]
A Harvard graduate, Robertie co-authored a popular series of seven books on tournament no-limit Texas hold'em with 1995 World Champion Dan Harrington, entitled Harrington on Hold 'em. The books were published by Two Plus Two Publishing.