Helen Caldicott is an Australian anti-nuclear activist.
In 1971 she played a major role in Australia’s opposition to French atmospheric nuclear testing in the Pacific. While a faculty member of Harvard Medical School in the early 1980s, Caldicott was the president of Physicians for Social Responsibility, an organization of 23,000 doctors committed to educating their colleagues about the dangers of nuclear power, nuclear weapons and nuclear war. On trips abroad she helped start similar medical organizations in many other countries; their umbrella group, International Physicians for the Prevention of Nuclear War, won the Nobel Peace Prize in 1985.
In 1974 she founded the Cystic Fibrosis Clinic at Adelaide Children’s hospital. She also founded the Women’s Action for Nuclear Disarmament (WAND) in the US in 1980.
She is a graduate of the University of Adelaide School of Medicine.