Guglielmo Siniscalco (21 July 1921 – 5 December 2020)[1] was an Italian bridge player. Native of Naples, he was a civil engineer by vocation. He was six-times Italian champion (1948, 1949, 1951, 1956, 1957 and 1959). He won three Bermuda Bowl titles in 1957, 1958 and 1959 with the Blue Team.[2] After the 1959 victory, he decided to withdraw from professional bridge to pursue an engineering career.[3]