List of Famous people who died at 75

Stanisław Marcin Ulam was a Polish-American scientist in the fields of mathematics and nuclear physics. He participated in the Manhattan Project, originated the Teller–Ulam design of thermonuclear weapons, discovered the concept of the cellular automaton, invented the Monte Carlo method of computation, and suggested nuclear pulse propulsion. In pure and applied mathematics, he proved some theorems and proposed several conjectures.

Lloyd Tyrell-Kenyon, 5th Baron Kenyon,, was a British hereditary peer, member of the House of Lords, and academic administrator. The only son of Lloyd Tyrell-Kenyon, 4th Baron Kenyon, he succeeded to the title of Baron Kenyon on his father's death in 1927.

David A. Stallworth was an American professional basketball player. He played in the National Basketball Association (NBA) for eight seasons and was a member of the New York Knicks' 1969–70 championship-winning team.

Magdaleno Mercado Gutiérrez was a Mexican football midfielder who played for Mexico in the 1966 FIFA World Cup. He also played for Club Atlas.

Augusto Giomo was an Italian basketball player. He competed at the 1960 and 1964 Olympics and finished in fourth and fifth place, respectively. His younger brother Giorgio played for Italy at the 1972 Games.

David Roberto Bárcena Ríos was a Mexican equestrian who competed at five Olympic Games. He competed in the Modern Pentathlon at the 1964 and 1968 Olympics and in Eventing at the 1972, 1976 and 1980 Olympics. At his fifth Olympics, he won bronze in the Team Event.

Field Marshal Sir Nigel Thomas Bagnall, was Chief of the General Staff, the professional head of the British Army from 1985 to 1988. Early in his military career he saw action during the Palestine Emergency, the Malayan Emergency, the Cyprus Emergency and the Indonesia–Malaysia confrontation, and later in his career he provided advice to the British Government on the future role of Britain's nuclear weapons.