Jeanne Alida "Jan" Ruff O'Herne (18 January 1923 – 19 August 2019) was a Dutch Australian human rights activist known for campaigning internationally against war rape.
During World War II, O'Herne was forced into sexual slavery by the Imperial Japanese Army.
After remaining silent for fifty years, from the 1990s until her death, O'Herne spoke out publicly to demand a formal apology from the Japanese government and to highlight the plight of other "comfort women".
On her passing, the South Australian Attorney-General noted: "her story of survival is a tribute to her strength and courage, and she will be sorely missed not only here in South Australia, but around the world."