Susan Schardt (15 January 1872 – 9 October 1934) was an Australian philanthropist who founded an organization to provide care for poverty-stricken people with incurable conditions who had been discharged from the hospital.

Canvassing the state to raise funds, she founded the Commonwealth Home for Destitute Invalids in Ryde, New South Wales to offer services to a larger number of patients.

[2] A devout Methodist, during the 1890s and the Long Depression, Schardt visited patients at the Royal Prince Alfred Hospital in Sydney[2] and performed charitable works.

Generous donations were made from philanthropists and Schardt and her companion Beatrice Ricketts travelled by railway, speaking to interested groups to raise money.

[4] In November 2023, it was announced that Schardt was one of eight women chosen to be commemorated in the second round of blue plaques sponsored by the Government of New South Wales alongside, among others, Kathleen Butler, godmother of Sydney Harbour Bridge; Emma Jane Callaghan, an Aboriginal midwife and activist; Dorothy Drain, one of Australia's first female war correspondents; writer Charmian Clift; Pearl Mary Gibbs, an Aboriginal rights movement activist, and charity worker Grace Emily Munro.