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

1,053 Profile Views

Calvin Heidenreich

Feb 05, 2026

So glad I called Justine Johnston to handle my Competition / Antitrust Law case in Toronto

I wasn't sure who to call for my Competition / Antitrust Law problem, but I'm so glad I went with Justine Johnston. They really listened to me and understood my situation. It was such a relief to have...

Darryl Bode

Feb 05, 2026

Absolutely Great! I couldn't be happier with the service from Justine Johnston

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...

Wanda Wintheiser

Feb 05, 2026

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

Agnes Herman

Feb 05, 2026

The absolute best in Toronto for Competition / Antitrust Law - and I mean that from the bottom of my heart

If you're looking for someone who actually cares and will fight for you, go to Justine Johnston. They helped me out big time with my Competition / Antitrust Law issue and kept me informed at every ste...

Donnie Wilderman

Feb 05, 2026

Excellent legal representation provided by Justine Johnston for my Competition / Antitrust Law case

Really glad I found Justine Johnston for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If you're in...