Sir Darcy Rivers Warren Cowan (8 August 1885 – 9 June 1958) was an Australian medical practitioner and advocate of effective treatment of tuberculosis.
[1] The sixth of seven sons of James Cowan and Sarah Ann (née Warren) and brother of Gladys Rosalind Lewis.
He championed the effective treatment of tuberculosis, including the use of Bacillus Calmette-Guérin vaccine.
He championed the establishment of Bedford Industries Inc,[4] focusing on the rehabilitation of those afflicted with tuberculosis and also worked with the James Brown Memorial Trust which owned and managed Kalyra Sanatorium and Estcourt House, Grange.
The Australian Laennec Society commemorated him by the Sir Darcy Cowan prize for research into respiratory disease.