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 hospital. Canvassing the state to raise funds, she founded the Commonwealth Home for Destitute Invalids in Ryde to offer services to a larger number of patients. The hospital, which has changed names numerous times, is still functioning as an occupational rehabilitation service provider and is now known as Royal Rehabilitation Hospital.