Fiona Trethewey
Fiona Trethewey cover
Fiona Trethewey

Fiona Trethewey

Partner Vardon Legal

location
Adelaide, SA
Click to Reveal Phone Number(08) 831..
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About Fiona

Fiona Trethewey is a Partner leading the intellectual property team, bringing over 20 years of experience in intellectual property law and franchising. She works closely with clients across Australia and internationally, managing trade mark and intellectual property portfolios in a wide range of industries. Fiona provides expert advice on trade mark prosecution, enforcement, and infringement matters, having represented prominent clients including Sensis, Toyota, BP, the Commonwealth of Australia, and Canopy Growth Corporation, among others. Notably, Fiona played a pivotal role in securing Australia’s first colour trade mark registration for Philmac and helped establish regional branding for the Kangaroo Island Futures Authority. Her comprehensive knowledge encompasses all aspects of Australian and New Zealand trade mark law, including searches, applications, registrations, licensing, distribution, enforcement, and litigation. Beyond intellectual property, Fiona has substantial experience advising on commercial transactions, licensing, distribution agreements, and major procurement contracts, including work for the Commonwealth of Australia. She has appeared in various court proceedings involving trade mark and copyright disputes, successfully representing clients such as The Honest Group, Helping Hand Aged Care, and Sensis. Fiona supports multiple franchise systems and has received recognition from the Franchise Council of Australia as the 2009 South Australian Franchise Woman of the Year. Additionally, she was named South Australia’s Lawyer of the Year for Franchise Law by Best Lawyers in 2020. Prior to founding Vardon Legal in 2013, Fiona was a partner at a leading national law firm for 13 years. She holds a Bachelor of Laws with Honours and a Bachelor of Commerce from Flinders University, along with a Master of Laws specialising in Intellectual Property from the University of Melbourne. Fiona is a Registered Trade Marks Attorney and active member of the Intellectual Property Society of Australia and New Zealand, a fellow of the Institute of Patent & Trade Mark Attorneys, and serves on the Emerging Issues Committee of the International Trade Marks Association.

Practice Areas

Commercial Law
Intellectual Property
Litigation & Disputes

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Resume

Experience

Partner
Partner
Vardon Legal
Nov 2020 - Present · 4 years 11 months
Partner
Partner
KHQ Lawyers Adelaide
Aug 2013 - Nov 2020 · 7 years 3 months
Partner
Partner
Fox Tucker Lawyers
Dec 2000 - Aug 2013 · 12 years 8 months
Partner
Partner
DLA Phillips Fox
Jan 2000 - Aug 2010 · 10 years 7 months
Tax Analyst
Tax Analyst
Deloitte
Dec 1997 - Dec 2000 · 3 years

Education

Masters of Law, Intellectual Property
Masters of Law, Intellectual Property
University of Melbourne
2009
Bachelor of Laws and Legal Practice, Law
Bachelor of Laws and Legal Practice, Law
Flinders University
2000

Awards

2019
Recommended in the Leading Intellectual Property Lawyers
Doyles Guide
2019
Recommended in the Leading Technology Media & Telecommunications Lawyers
Doyles Guide

Contact Information

Adelaide, SA

LocationLevel 2, 104 Frome Street, Adelaide, SA
Click to Reveal Phone Number(08) 831..

Practice Certificate

Name
Fiona Nicole Trethewey
Date of Admission
2001
Certification type
A
CheckLast checked: 19 Oct 2025