David F. O'Connor

David F. O'Connor

Roy O'Connor LLP

Recognized since 2020

Toronto, Ontario

Practice Areas

Corporate and Commercial Litigation

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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".


  • 1920 Yonge Street Suite 300
    Toronto, ON M4S 3E2

Recognized in The Best Lawyers in Canada 2022 for work in:

  • Corporate and Commercial Litigation

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