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

1,056 Profile Views

Kenny Gleichner

Feb 05, 2026

Justine Johnston did a great job handling my complex Competition / Antitrust Law case from start to finish

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...

Johnnie Bartell

Feb 05, 2026

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

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...

Flora Brown

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...

Earnest Christiansen

Feb 05, 2026

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

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-...

Alvin Halvorson

Feb 05, 2026

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

I didn't think I'd find such a good lawyer in Ontario, but here we are and I am thoroughly impressed. Justine Johnston is just awesome and exceeded all my expectations. No complaints at all! They real...