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

1,051 Profile Views

Amy Murazik

Feb 05, 2026

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

Short and sweet: Justine Johnston is the real deal and a true professional in the field of Competition / Antitrust Law. If you're in Toronto and need help with your legal issues, call them immediately...

Jesus Heaney

Feb 05, 2026

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

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...

Maurice Braun

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...

Jessie Nader

Feb 05, 2026

Professional service and clear communication provided by Justine Johnston in Toronto

Solid experience overall with the law firm of Justine Johnston. They know Competition / Antitrust Law inside and out and gave me great advice. Very helpful and got the job done exactly as they said th...

Herman Lowe

Feb 05, 2026

Professional service and clear communication provided by Justine Johnston in Toronto

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...