Marie Elizabeth Rita McMahon (born September 1953) is an Australian artist, known for her paintings, prints, posters, drawings, and design work.
[2] In 1976, McMahon joined the Earthworks Poster Collective at the Tin Sheds Art Workshop located on the campus of the University of Sydney.
[2] Recruited with other screen printers by the Aboriginal Arts Board, in 1980 she went to the Northern Territory to work at Tiwi Designs.
Later in the 1980s Marie worked as a designer at Redback Graphix in Wollongong and Sydney, where she produced well-known posters related to health issues for Aboriginal and Torres Strait Islander people.
When asked about that period McMahon said the women artists "saw themselves as outsiders to the mainstream art establishment, inspired by acts like the Sex Pistols and the Clash.