Roger Trézel (1918 1986) was a famous French bridge player. A World Bridge Federation (WBF) Grand Master, he was the winner of World Team Olympiad in Turin 1960, Bermuda Bowl in Paris 1956, and World Open Pairs Championship in Cannes 1962. He is one of only 10 players who collected the Triple Crown of Bridge. With his regular partner Pierre Jaïs he won the prestige Sunday Times Invitational tournament in 1963. He was also the author of several bridge books, including the famous "When to duck, when to win" co-authored with Terence Reese.