Justine Johnston

4.6 (30 reviews )

Toronto Ontario Canada

Competition / Antitrust Law

Recognized in Ones to Watch since 2025

416-863-1221 Website

About Justine

Justine Johnston: Experienced Antitrust and Competition Lawyer in Toronto, Ontario, Canada

Justine Johnston is a highly intelligent and creative problem solver who specializes in securing transactional regulatory approvals for clients in domestic, cross-border, and multi-jurisdictional transactions. She also provides comprehensive advice on complex investigations.
Recognized as an Associate to Watch in Competition/Antitrust since 2025 by Chambers Canada.

Practice Areas

Antitrust
Competition Law
Criminal Investigations
Internal Compliance Reviews
E-Discovery Processes

Baker McKenzie LLP, Toronto, Ontario, Canada.

Awards and Recognitions

Chambers Canada: Associate to Watch in Competition/Antitrust since 2025.
Lexology Index: Future Leader (Non-Partner) in Competition since 2023.
Best Lawyers: Ones to Watch in Canada for Competition/Antitrust Law since 2025.

Education and Professional Background

Bachelor of Laws (LLB), University of Toronto, Canada
Juris Doctor (JD), Osgoode Hall Law School, University of Toronto, Canada

Firms and Affiliations

Baker McKenzie LLP, Toronto, Ontario, Canada

Recognized Since: Recognized in Ones to Watch since 2025 by Chambers Canada.

Locations and Languages

City: Toronto, State: Ontario, Country: Canada

Practice Areas

Competition / Antitrust Law

Awards & Recognition

Recognized: Competition / Antitrust Law

Contact Me

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Reviews

4.6 / 5

30 Reviews

1,057 Profile Views

Peggy Steuber

Feb 05, 2026

Top notch experts in Toronto - Justine Johnston is by far the best lawyer I've ever had

If you need a Competition / Antitrust Law lawyer, Justine Johnston is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my cas...

Todd Raynor

Feb 05, 2026

So happy with the results of my case thanks to the hard work of Justine Johnston and staff

I was really stressed about my case in Toronto, but Justine Johnston made everything so smooth and stress-free. Seriously, the best decision I've made lately was hiring them. They handled every detail...

Kristen Bruen

Feb 05, 2026

Reliable lawyer you can count on - Justine Johnston provided excellent service throughout

Needed help with Competition / Antitrust Law and Justine Johnston delivered on their promises. They're professional, efficient, and easy to talk to. Good choice for anyone in Ontario looking for high-...

Jacquelyn Powlowski

Feb 05, 2026

Solid work and professional service from Justine Johnston in Toronto for Ontario residents

I've worked with a few lawyers in Toronto over the years, but Justine Johnston stands out for their honesty and thoroughness. They were clear about the process and kept me updated at all times. I felt...

Marshall Parker

Feb 05, 2026

Great people who truly care at Justine Johnston - the best legal team in Ontario

I've already told all my friends and family about Justine Johnston. If you need Competition / Antitrust Law help in Ontario, they're the ones to see without any doubt. They are local experts who reall...