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

1,052 Profile Views

Bradley Gorczany

Feb 05, 2026

A huge weight off my shoulders thanks to the amazing work of Justine Johnston

Justine Johnston has been doing this since 2025, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my legal matters in Ontario. Their experi...

Charles Kuhn

Feb 05, 2026

Would recommend Justine Johnston for sure to anyone in Toronto needing legal help

Everyone at Justine Johnston's office in Toronto was so nice and helpful. They made a tough situation a lot easier to deal with by being so patient and explaining everything clearly. I never felt like...

Edward Moore

Feb 05, 2026

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

Justine Johnston is fantastic and very professional. Don't hesitate to hire them if you're in Ontario and need help. They really know their stuff and will go the extra mile to make sure you're taken c...

Shannon Beier

Feb 05, 2026

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

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...

Leticia Lemke

Feb 05, 2026

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

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-...