Williams is the youngest of four girls. Her father worked as an electronics technician and for most of her life, her parents ran a small business repairing household electrical goods. She attended
Emmaus College and graduated in 2000 before attaining a Bachelor of Laws and a Bachelor of Arts from
Monash University, with Honours. Williams worked as a Ministerial Adviser to Minister for Energy and Community Development,
Peter Batchelor and later, Minister for Community Development,
Lily D'Ambrosio. She also worked as an Electorate Officer for Federal Member for Bruce,
Alan Griffin. After completing her university studies Williams worked as solicitor at
Baker McKenzie. While working as a solicitor, Gabrielle became the director of not-for-profit disability health organisation, Disability Sport and Recreation. Most recently before becoming an MP, Gabrielle worked as a Project Manager in the Office of the Vice Chancellor at
The University of Melbourne. == Political career ==