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

1,055 Profile Views

Randall Collins

Feb 05, 2026

Five stars for the incredible team at Justine Johnston in Toronto - they are amazing

Super helpful and professional staff at Justine Johnston's office. Thanks again for everything you did for me! It was a long journey, but you made it much easier with your constant support and legal e...

Gretchen Treutel

Feb 05, 2026

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

Best lawyer for Competition / Antitrust Law in Toronto. Period. I've seen others, but Justine Johnston is on another level. They truly care about their clients and work hard to get the best results. I...

Carlton Blanda

Feb 05, 2026

Many thanks to Justine Johnston for the hard work and dedication to my legal matter

Cornelius Cole

Feb 05, 2026

Highly recommend Justine Johnston for anyone needing expert Competition / Antitrust Law help in Ontario

Honestly, I can't thank Justine Johnston enough for everything they've done for me. They really know their stuff when it comes to Competition / Antitrust Law and it shows in the results. 10/10 would r...

Elizabeth Schowalter

Feb 05, 2026

A very good experience overall with the entire team at Justine Johnston's legal practice

I appreciate how Justine Johnston handled my case. No fluff, just straight to the point and very effective representation for my Competition / Antitrust Law matter. They are obviously very experienced...