Johnny Cuthbert was a British boxer who was British featherweight champion between 1927 and 1928, and again from 1929 to 1931, winning the Lonsdale Belt outright, and British lightweight champion between 1932 and 1934.

The Lord Lonsdale Challenge Belt, commonly known as the Lonsdale Belt, is the oldest championship belt in British professional boxing. The 5th Earl of Lonsdale introduced the prize on behalf of the National Sporting Club (NSC), intending it to be awarded to British boxing champions. Arthur Frederick Bettinson, manager of the NSC, introduced terms and conditions regarding the holding of the belt, which ensured its lasting prestige. Freddie Welsh earned the first Lonsdale Belt in 1909 after winning the NSC British Lightweight title. Heavyweight Henry Cooper was the first and only boxer to win three Lonsdale Belts. In 1929 the British Boxing Board of Control (BBBofC) assumed responsibility for awarding the belt, which continues to be bestowed on British champions.