Gabrielle Carey left school at the age of fifteen and first became known as a writer at the age of twenty when she and her friend Kathy Lette published the controversial Puberty Blues, based on their own lives and those of other teenagers in the Sydney surfie set.
She was raised in an atheist humanist household, but while in Ireland in the mid-eighties was converted to the Catholic faith, becoming convinced of the importance of spirituality in everyday life.
She lived for several years in a small village in Mexico, returning to Australia in the early 1990s. She lived in Sydney and worked as a freelance writer and lecturer in writing.
In 2010, Gabrielle Carey was teaching writing at Sydney's University of Technology while working on a book about Randolph Stow and the Swan River Colony families, which was published in 2013. In 2020, she was highly commended for the Hazel Rowley Fellowship for a project on Elizabeth Von Arnim.