

Gilbert Hallahan is a Senior Associate renowned for his expertise in commercial litigation. With a proven track record in dispute resolution, Gilbert expertly navigates the complexities of legal challenges across various sectors. He holds a Juris Doctor from Stanford Law School and remains committed to his community through active pro bono work. Gilbert's career commenced as a Law Clerk at HWL Ebsworth Lawyers, progressing to Solicitor, and then Associate. His role as Associate to Justice Blue at the Supreme Court of South Australia further honed his skills in judicial processes. Since joining O'Halloran Law, Gilbert has dedicated his efforts to effectively representing his clients. His foundational education includes a Bachelor of Laws with First Class Honours and a University Medal from the University of Adelaide, complemented by a Bachelor of Economics (Advanced). His early academic achievements were shaped at Mercedes College, where he completed the International Baccalaureate. Gilbert's commitment and rigorous approach make him a valued legal adviser in the commercial litigation landscape.

Lawyer
O'Halloran Law
Jul 2022 - Present • 4 years 4 months

Associate
HWL Ebsworth Lawyers
Feb 2022 - Jun 2022 • 4 months

Solicitor
HWL Ebsworth Lawyers
May 2020 - Jan 2022 • 1 year 8 months
Law Graduate
Jun 2019 - May 2020 • 11 months

Associate to Justice Blue
Supreme Court of South Australia
Jan 2018 - May 2019 • 1 year 4 months

Law Clerk
HWL Ebsworth Lawyers
Jan 2017 - Dec 2017 • 11 months

Bachelor of Laws - LLB
University of Adelaide
2013 - 2017

Bachelor of Economics (Advanced)
University of Adelaide
2013 - 2016
International Baccalaureate
Mercedes College
2008 - 2012
Last checked: 6 Sept 2026 • Checked with Law Society of South Australia