World War II rape survivor and human rights activist Jan Ruff-O'Herne has died in Adelaide aged 96.

Ms Ruff-O'Herne spoke out about her role as one of the "comfort women" who were repeatedly raped and beaten by occupying Japanese soldiers after the invasion of the Dutch East Indies - what is now Indonesia.

Former 'comfort woman' Jan Ruff-O'Herne. Credit:David Mariuz

"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," South Australian Attorney-General Vickie Chapman said on Tuesday.

Ms Ruff-O'Herne died on Monday surrounded by her family.