Thomas Moore (1920 – November 2007) was a British professional wrestler, best known by his ring name Jack Dempsey, who was active in North American and European regional promotions from the 1930s to the 1960s. At the time of his 1966 retirement, he was a quadruple-crown British, European, Commonwealth and World (European version) Welterweight Champion. One of the leading British welterweight champions during the 1960s, he faced many top stars of the era including George Kidd, , , , , and, most notably, Mick McManus whom he defeated for the British Welterweight Championship in 1958.