David Francis O'Connor

David F. O’Connor is the senior partner at Roy O’Connor LLP. Prior to founding the firm, David was a partner in a large national law firm in Canada. His practice is now focused on, and essentially split between, corporate/commercial/shareholder litigation and class action litigation.

In 2023, David was recognized as the Canadian Plaintiff Litigator of the Year by Benchmark Canada (the guide to Canada’s leading litigators). He has been recognized as a finalist for the Benchmark Canada awards for Class Action or Plaintiff Litigator of the Year in 2015 and again in 2017, and in each year since 2019. He was also 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.

David has also been recognized by Benchmark Canada as a litigation star in class actions and commercial litigation every year since Benchmark’s arrival in Canada (2012), with peer praise and respect for his “prowess” in both areas. David was also noted by Benchmark as one of the 50 litigators in Ontario who were awarded an additional “ Honourable Mention ”.

He is ranked in the Chambers Guide to Canada’s Leading Lawyers in the area of Class Actions, with one source quoted by Chambers stating: “I hold him in the highest regard. He’s a brilliant guy and when he’s on your team he’s a huge asset. He has great courtroom presence and a superb intellect.”

David is also a Lexpert® ranked leading class action litigator. David has also been listed in the Lexpert Special Edition of Lexpert – Canada’s Leading Litigation Lawyers – as published in the Globe and Mail’s Report on Business. He was also listed in the Lexpert Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada. In 2006, he was first recognized by Lexpert® as a finalist for the top 40 under 40 ranking in Canada.