"100+ Goodmans lawyers across 43 practice areas ranked as among the best lawyers in Canada." - Best Lawyers in Canada 2022    
Goodmans Directory

Gillian Olsen


golsen@goodmans.ca vCard
Bay Adelaide Centre - West Tower
333 Bay Street, Suite 3400
Toronto, ON M5H 2S7

Tel:   416.849.6005
Fax:   416.979.1234

Gillian Olsen is an associate in the Litigation Group at Goodmans.

Gillian obtained her law degree from the University of Toronto, where she won several academic awards including the Leonard Feigman, Q.C. Prize in Evidence, the Ting Sum Tang Memorial Prize in International Human Rights Law, and the Fasken Martineau DuMoulin LLP Award, which is awarded to five first-year law students obtaining honours.

Prior to joining Goodmans, Gillian was a litigation associate in New York where she developed her practice in the areas of commercial and international arbitration, white collar defence & investigations, and commercial litigation.


Gillian’s representative work prior to joining Goodmans LLP included acting as counsel for:

  • A major Canadian auction house in a commercial arbitration administered by JAMS.
  • U.S. companies in a bilateral investment treaty dispute administered by ICSID.
  • A large public utility investigating and preparing Covid-19 pandemic-related business interruption insurance claims.
  • Companies obtaining and defending third-party subpoenas in the U.S. compelling discovery in aid of foreign arbitration proceedings.
  • Companies and individuals in complex accounting and finance-related government investigations, including U.S. Department of Justice, U.S. Securities and Exchange Commission, and U.S. Commodity Futures Trading Commission investigations.


Education University of Toronto (J.D., 2018)
McGill University (B.A. (Political Science), 2015)
Professional Affiliations

Law Society of Ontario
Canadian Bar Association

Year of Call

2022 Ontario
2019 New York