Justine Wiebe


[email protected]

Justine has practised exclusively in the field of intellectual property since 1990. Known for her exemplary client service and consistently ranked as a leading trademark lawyer, Justine guides clients in the global clearance and protection of trademarks, and has particular expertise with non-traditional marks and pharmaceutical marks.


Justine also assists clients with the commercialization of intellectual property, including with the drafting of tailored trademark licenses.  Justine also has significant transactional experience, and clients rely on her to provide strategic analysis of Canadian trademark portfolios owned by potential acquisitions, and the strength and expansion potential of key brands.

Justine's practice also extends to contentious matters. She enforces clients' trademark rights through opposition and cancellation proceedings, sending demand letters and negotiating settlement agreements, and working with the IP litigation team to devise strategies involving complex trademark issues.


Justine is the Regional IP Group Leader for Toronto.

Justine provides legal services through a Law Corporation.



Serving as external trademark counsel to leading Canadian companies with international trademark portfolios and as external Canadian trademark counsel to leading companies in the U.S. and abroad. Clients span a wide range of industries, including insurance and finance, food and beverage, biotechnology and pharmaceutical, clothing and footwear, green chemistry, gaming and lottery and automotive/power sports vehicles.

Elected to serve on Council (the Board of Directors) of the Intellectual Property Institute of Canada (IPIC) in 2013-2014. IPIC is the Canadian professional organization of patent and trademark agents and lawyers practising in intellectual property. At that time, there were significant changes on the horizon for Canadian trademark law and practice, prompted largely by Canada's engagement in trade talks and Canada's imminent accession to three international trademark treaties (the Singapore Treaty, the Nice Agreement, and the Madrid Protocol). Justine's election to IPIC Council during this critical stage speaks to her expertise and reputation as a leading Canadian trademark lawyer with considerable experience in international trademark law and practice.

Beyond our Walls

Professional Involvement

  • Member, Canadian Bar Association (CBA)
  • Member, Ontario Bar Association (OBA)
  • Member, American Intellectual Property Law Association (AIPLA)
  • Member, Intellectual Property Owners (IPO)
  • Member, European Communities Trade Mark Association (ECTA)
  • Member, MARQUES
  • Member, International Trademark Association (INTA) - Founding Editor, Trade Dress: International Practice and Procedures
  • Fellow, Intellectual Property Institute of Canada

Community Involvement

  • Volunteer, BLG Reads to Kids Program, 2011-present

Awards & Recognitions

  • Managing IP Awards 2022 - Practitioner of the Year – Trademark – Canada
  • World Trademark Review — Global Leader
  • WTR 1000 — The World's Leading Trademark Professionals (gold tier)
  • Managing IP — IP STARS Top 250 Women in IP
  • Managing IP — IP Star
  • Chambers Canada — Canada's Leading Lawyers for Business (Intellectual Property)
  • Chambers Global — World's Leading Lawyers for Business (Intellectual Property)
  • Best Lawyers in Canada® (Intellectual Property Law)
  • Who's Who Legal: Canada (Trademarks)
  • World IP Review — WIPR Leaders: Trademarks
  • Canadian Legal Lexpert® Directory — Intellectual Property
  • Acritas Star: Independently Rated Lawyer (Nominated as a stand-out lawyer by senior in-house counsel)
  • Euromoney's Expert Guide: World's Leading Trade Mark Law Practitioners

Bar Admission & Education

  • Ontario, 1994
  • LLB, Queen's University, 1992
  • BA, University of Toronto, 1992