Ronni Kahn (née Hellmann; born 1952) AO is a South African-born Australian social entrepreneur, best known for founding the food rescue charity OzHarvest.

[1] Growing up, she lived next door to the activist Jules Browde and his wife, Selma, who were a source of inspiration for Kahn and later life-long friends of hers.

[3][4] On a holiday to South Africa, she was galvanised into action by a friend who had helped to bring electricity into the township of Soweto.

In December 2014 Ronni attended the Sustainable Innovation Forum in Lima, Peru, as part of the Think.Eat.Save campaign, which was held at the margins of the UNFCCC Climate Change Conference.

It was produced and directed by Daniel Goldberg over two years and covers Kahn's efforts in Australia, the United Kingdom, South Africa and Thailand.

[12][13] Since 2019, Kahn has also been involved with SA Harvest, the sister organisation of OzHarvest, in her native South Africa.

[18] In November 2024, she was nominated by Marie Claire (Australia) for "Icon of the Year" award with fellow nominees, Nicole Kidman and Emma McKeon.

[21] In February 2024, Kahn participated in a NIF discussion with Rabbi Jeffrey Kamins at Emanuel Synagogue in Sydney.

[22] She married her first husband, Des Kahn, from South Africa's Jewish community, on a kibbutz in Israel in 1972.

She condemned the attacks: “No political situation can justify this slaughter and torture and terrorism.”[24] Kahn's memoir, titled A Repurposed Life, was released in 2020.