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Who's Who Legal
Who's Who Legal
Thought Leaders

Thought Leaders

Thought Leader

Thought Leaders - Competition 2021
WWL Ranking: Thought Leader

Global Leader

Competition 2021

Professional Biography

WWL Ranking: Recommended

Peers and clients say:

"Fiona’s top-level experience helps her navigate difficult legal environments exceptionally well" 
"She works constructively with the federal regulator and other parties" 
"Her strategic vision and soft skills allow her to deftly handle sensitive multi-party matters" 
"Fiona brings great vision to negotiations and strategy"


Fiona is a preeminent Australian competition and antitrust practitioner. She is the former head of Allens' competition and consumer group, and now serves as the firm's elected Chair.

Fiona maintains a very active competition practice and enjoys an outstanding reputation for her work in complex global and domestic merger clearances, competition investigations, and defence work in ACCC prosecutions and infrastructure access matters. She has won many seminal competition cases including cases that: settled the application of legal professional privilege when responding to regulatory notices; clarified the law on 'anti-competitive purpose' in a leading market power case for Pfizer; recently established the importance of investment markets and network economics in a court-contested merger for Vodafone, described by the ACCC as the most important merger litigation in a decade. 

Fiona is the past Chair of the competition and consumer committee of the Law Council of Australia and is an active speaker on regulatory and competition issues, liaising regularly with the Australian Treasury and Commissioners of the ACCC on matters of competition policy and law reform. She is ranked as a leading competition practitioner in Chambers Asia-Pacific (band 1), The Asia-Pacific Legal 500 (hall of fame ranking), Best Lawyers and Global Competition Review (band 1), which has identified Fiona as a leading woman in antitrust globally in successive publications.

Fiona serves on the Board of the Children's Medical Research Institute where she also chairs the Institute's audit and risk committee and is a member of the digital strategy committee.

WWL Ranking: Recommended

National Leader

WWL Ranking: Recommended
WWL Ranking: Recommended
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