Mickey Duff (born Monek Prager; 7 June 1929 – 22 March 2014) was a prominent figure in 20th-century boxing. Born in Kraków to a Jewish family, he was Poland-born and later became widely identified with the English boxing scene. His family escaped mounting persecution in Europe when his rabbi father led them to the United Kingdom in the late 1930s, a formative experience that preceded Duff's long career in the sport.

Duff began in boxing as a boxer himself before finding his niche outside the ring. He developed a reputation as an astute manager and promoter, known for careful matchmaking, negotiation skills and the ability to craft public profiles for fighters. Over decades he helped professionalize aspects of British boxing promotion and built long-term working relationships with broadcasters, venues and boxing commissions.

Notable fighters and career highlights

Across a managerial and promotional career that spanned the mid-20th century into the 1990s, Duff guided the careers of many leading British fighters. His stable included domestic stars and world champions; he was credited with steering careers through critical title pursuits and high-profile fights. Among the boxers closely associated with him were:

Duff's role varied from hands-on trainer liaison to high-level promoter arranging purses and venues. He was seen as a stabilizing force for many fighters' careers, often advising on when to pursue regional or world title fights and negotiating terms that could elevate a boxer's standing.

Legacy and later life

After retiring from active promotion in 1999, Duff's contributions to boxing were recognized by peers and institutions. He was later inducted into the International Boxing Hall of Fame, an acknowledgement of his influence on the sport's development in Britain and abroad. Colleagues and historians credit him with helping to create careers that otherwise might not have reached world stages.

In his later years Duff suffered from Alzheimer's disease, and he died of natural causes on 22 March 2014 in Aldgate, London. He was 84. His life—starting as a refugee child and ending as a respected architect of modern British boxing—remains a notable example of immigrant contribution to British sporting life.

Notable facts: Duff's career illustrates the multiple roles a promoter-manager can play: talent identification, public relations, contract negotiation and long-term career planning. His impact is visible in the roster of champions he guided and in the structures of British boxing promotion that matured during his active years.