John Flynn was an Australian Presbyterian minister who founded the Australian Inland Mission (AIM) which later separated into Frontier Services and the Presbyterian Inland Mission, as well as founding what became the Royal Flying Doctor Service, the world's first air ambulance.

The Royal Flying Doctor Service (RFDS), commonly known as the Flying Doctor, is an air medical service in Australia. It is a non-profit organisation that provides emergency and primary health care services for those living in rural, remote and regional areas of Australia who cannot access a hospital or general practice due to the vast distances of the Outback.