Hazel Hawke, Australian social worker and pianist, 23rd Spouse of the Prime Minister of Australia (d. 2013)

Hazel Susan Hawke, AO (née Masterson, 20 July 1929 – 23 May 2013) was the first wife of Bob Hawke, the 23rd Prime Minister of Australia. She married him in 1956, and supported him throughout his prime ministership (1983–1991); they divorced in 1995. She worked in social policy areas, and was an amateur pianist and a patron of the arts. After she was diagnosed with Alzheimer's disease, she made public appearances in order to raise awareness of the disease.