Nancy Joy Baluch AM (10 October 1932 – 14 May 2013) was an Australian politician who served as Mayor of Port Augusta from 1981 to 1993 and from 1995 until her death. Her term as mayor of 29 years is believed to be an Australian record. Her husband died 16 years before she did, of lung cancer. As he did not smoke, it was attributed to the power stations where he worked. Baluch campaigned for solar-thermal technology to replace coal-fired power. She died, still the serving mayor, on 14 May 2013 after a long period with breast cancer.