Practice area(s): Class actions
Location(s): Sydney
Qualification(s): BA, LLB(Hons)

Oscar McLaren is a class actions Senior Associate in Maurice Blackburn’s Sydney office.

Oscar is currently involved in class actions against Treasury Wine Estates for alleged breaches of continuous disclosure obligations and misleading and deceptive conduct. He also acts for and provides advice to Greenpeace.

Oscar has worked on a number of successful social justice cases and class actions that have now concluded, including the firm’s:

  • successful 2015 High Court challenge to a patent over the BRCA1 breast and ovarian cancer gene
  • class action against the NSW government over the false imprisonment of children by NSW police that settled in 2015
  • shareholder class action against Leighton Holdings, that settled for $69.45 million in August 2014
  • shareholder class action Nufarm, that settled for $46.625 million in November 2012
  • shareholder class action against OZ Minerals, that settled for $39 million in May 2011, and
  • cartel class action against Amcor and Visy that settled for $120 million in March 2011.

Oscar holds a Bachelor of Arts and Honours in Law. Before joining Maurice Blackburn, Oscar worked for five years as a journalist at the ABC on programs including Four Corners, Lateline, Background Briefing and the radio current affairs programs AM, PM and The World Today.

Oscar’s decision to pursue a career in the law was fuelled by a desire to take on corporate excesses. His determination to hold large corporations and governments accountable for wrongdoings is fuelled by an abiding belief in the social justice principles that underpin the firm.

“The most rewarding thing about my work is helping large groups of people to take action that they wouldn't be able to take as individuals acting alone," says Oscar.

He is also passionate about environmental issues and sits on the board of the Sydney Renewable Power Company.

Memberships & accreditations

  • Law Society of NSW member
  • Sydney Renewable Power Company Director


  • Andrew Olle Scholarship (Australian Broadcasting Corporation), 2009