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David F. O'Connor

Dedicated business attorney.

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David F. O'Connor is an attorney based in Toronto, ONTARIO. The practice focuses on Business and Litigation. Currently practicing at Roy O'Connor LLP.

Based in
Toronto, ONTARIO
Experience
attorney
Known for
Business · Litigation
  • Handles Business and Litigation matters from Toronto, ONTARIO.
  • Recognized with Best Lawyers in America — Corporate and Commercial Litigation (2026).

About David F. O'Connor: David F. O'Connor is an attorney based in Toronto, ONTARIO. The practice focuses on Business and Litigation. Currently practicing at Roy O'Connor LLP.

Areas of practice

Practice focus

David F. O'Connor represents clients across the following areas of law. Each area links to other verified attorneys with the same focus.

Biography

About David F. O'Connor

David is a founding partner in Roy O’Connor LLP, a litigation boutique in Toronto. He was previously a partner in a large national law firm. His practice is focused on commercial and class action litigation (both defence and plaintiff side). He was recognized as a finalist by Benchmark Canada for Class Action Litigator of the Year in 2015 and again in 2017, and for plaintiff counsel of the year in 2019, 2020 and 2021. He has been consistently recognized by Benchmark Canada as a litigation star in class actions and commercial litigation, with peer praise for his “prowess” in both areas. David was named as one of the finalists for the Top 25 Most Influential Lawyers in Canada in 2015 and again in 2016, as nominated in Canadian Lawyer magazine. He has been listed in the Lexpert®/ROB Special Edition: Canada’s Leading Litigation Lawyers, as well as the Lexpert® Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada. He is ranked in the Chambers Guide to Canada’s Leading Lawyers in Class Actions and ranked by The Best Lawyers in Canada in the area of Corporate and Commercial Litigation. In 2006, David was recognized by Lexpert® as a finalist for the "Top 40 Under 40".

Recognition

Awards & honors

  • Best Lawyers in America — Corporate and Commercial Litigation

    2026

Locations

Office locations

Main office

Roy O'Connor LLP

200 Front St W

Toronto, Ontario

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Frequently asked

Common questions

  • What areas of law does David F. O'Connor practice?

    David F. O'Connor focuses on Business and Litigation.

  • Is David F. O'Connor a verified attorney?

    David F. O'Connor's profile is listed but has not yet been claimed by the attorney. Verification status is pending.

  • How can I schedule a consultation with David F. O'Connor?

    You can book a consultation through LawyersListed directly from this page. Initial outreach can also be made by phone at 416-362-1989.