Lisa-Marie Vizaniari (born 14 December 1971) is an Australian retired discus thrower who competed at two Olympic Games. She is also a retired professional boxer.
Vizaniari won the British AAA Championships title at the 1990 AAA Championships.
At the 1996 Olympic Games in Atlanta, she represented Australia in the discus event.
Her personal best throw was 65.86 metres, achieved in March 1997 in Melbourne. The Australian, and Oceanian, record then belonged to Daniela Costian with 68.72 metres.
She went to her second Olympic Games in 2000 at Sydney, competing in the discus event again.
<sup>1</sup>Representing Oceania
In 2001, Vizaniari made her professional debut as a boxer. Vizaniari is a two time World Heavyweight Champion.