Ian Frazer is an Australian immunologist, best known for his work on the development of a cervical cancer vaccine. In January 2006 he was named Australian of the Year.

He trained as a physician in Edinburgh, specialising in immunology. He emigrated to Melbourne in 1980 to research viral immunology and moved to Queensland in 1985 where he currently heads the University of Queensland Centre for Immunology and Cancer Research at the Princess Alexandra Hospital.

In 2005 Ian Frazer and his research groups clinical study of a vaccine against human papillomavirus, discovered it was 100% effective in preventing common cervical cancers caused by the virus.

He has just been awarded the Clunies Ross Award for his ground breaking effort and last March the Florey Medal for Bio Medical Research. Last year he received the US Cancer Research Institute William B Colley Award for distinguished research.