Australian Film Institute Award for Best Actress in a Supporting Role

AACTA Award for Best Actress in a Supporting Role
Country	Australia
Presented by	Australian Academy of Cinema and Television Arts (AACTA)
First awarded	1976
Currently held by	Mirando Otto, The Daughter (2015)
Official website	http://www.aacta.org

The AACTA Award for Best Actress in a Supporting Role is an accolade given by the Australian Academy of Cinema and Television Arts (AACTA), a non-profit organisation whose aim is to "identify, award, promote and celebrate Australia's greatest achievements in film and television." The award is handed out at the annual AACTA Awards, which rewards achievements in feature film, television, documentaries and short films. From 1976–2010, the category was presented by the Australian Film Institute (AFI), the Academy's parent organisation, at the annual Australian Film Institute Awards (known as the AFI Awards). When the AFI launched the Academy in 2011, it changed the annual ceremony to the AACTA Awards, with the current prize being a continuum of the AFI Award for Best Actress in a Supporting.

Toni Collette and Judy Davis are the most awarded actresses in this category with three wins each. Candidates for this award must be human and female, and cannot be nominated in the leading actress category for the same role in the same production.

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