Donna  White

Donna White

Ottawa Managing Partner

Contact Information

tel: 613.787.1061



Bar Admission

Ontario, 1984


  • University of Ottawa, LL.M.
  • University of Ottawa, LL.B.
  • Carleton University, B.A.



Donna is the Managing Partner of Osler’s Ottawa office. Donna’s practice focuses on trade-mark prosecution with a significant emphasis on proceedings before the Trade-mark Opposition Board. Her expertise encompasses international and domestic trade-mark counselling, licensing, Internet and domain name issues, trade-mark enforcement and product labelling. She regularly counsels clients on international registration and the management of domestic and international portfolios. Donna is on the Editorial Board of the Internet Law & Business. She is also former Chair of the Trade-mark Agents Board of Examiners and was a member for many years of the Editorial Board of the Canadian Patent Reporter. She is author of Selecting and Protecting Trade-marks: A Practice Guide and has spoken extensively on international and domestic trade-mark protection at many conferences and seminars.

    Among the clients whom Donna White has advised or acted for are: Live Nation Worldwide; Bausch & Lomb Incorporated; ADP Inc.; Bloomberg LP; Combe Incorporated; Wrangler Apparel Corp.; Polo/Ralph Lauren as well as numerous celebrities, entertainers and fashion designers.

  • Chambers Canada: Canada's Leading Lawyers for Business: Recognized in Intellectual Property
  • Chambers Global: The World’s Leading Lawyers for Business: Recognized in Intellectual Property
    • “Ottawa managing partner Donna White has a strong focus on trade mark issues and is also proficient in domain name issues and product labelling matters. One source enthused: "She is my go-to person in Canada for trade mark filings."
  • The Canadian Legal Lexpert Directory: Recognized in Intellectual Property; Ontario's best intellectual property lawyers in 2021
  • The Lexpert/American Lawyer Guide to the Leading 500 Lawyers in Canada: Recognized in Intellectual Property
  • Best Lawyers in Canada: Recognized in Intellectual Property Law
  • Legal 500: Recognized in Intellectual Property 
  • Who’s Who Legal: Recognized in International - Trademarks; Canada - Trademarks
  • Managing IP: Recognized as an IP Star in Trade mark (Canada) and as one of the Top 250 Women in IP
  • WTR 1000: Recognized in The World’s Leading Trademark Professionals in Prosecution and Strategy (Gold Band)
    • “Donna’s a guru when it comes to opposition proceedings, as well as a judicious all-round counsellor.”
    • “An efficient, knowledgeable and practical adviser,” White is “very service-oriented, always accommodating for last-minute changes.”
  • WTR Global Leaders: Recognized as a Global Leader
  • World Intellectual Property Review: Recognized as a Trademark Leader

  • Canadian Bar Association, Committee Member
  • Intellectual Property Institute of Canada, Chair, Trademark Committee
  • International Trademark Association, Committee Member
  • Registered Trademark Agent
  • Former Chair of Trademark Agents Examination Board

Previous Speaking Engagements

  • Canada’s new trademark regime: Bad faith in opposition cases, 2019 (article).
  • What's In a Name, Intellectual Property Institute of Canada Annual General Meeting, October 2018 (presentation).
  • Catching up with Practice Notices, Intellectual Property Institute of Canada Annual General Meeting, September 2010 (presentation).
  • Securitization and Collateralization of Brands, International Trade-mark Association Annual Meeting, May 2009 (presentation).
  • Advanced Opposition Evidence, Intellectual Property Institute of Canada Annual General Meeting, September 2009 (presentation).


  • A year on, Canada's sweeping trademark law is driving delays, Managing IP, June 2020.
  • Trade-mark Protection in Canada – Tips and Traps, Osler Update, April 2007.