Skip to main content
PLEASE NOTE: For everyone’s safety, Fasken requires anyone on-site at our Canadian offices to provide proof of full vaccination against COVID-19. This applies to lawyers, staff, clients, service providers and other visitors.
Antonio Di Domenico Toronto Lawyer

Antonio Di Domenico *

Partner | Co-leader, Competition, Marketing & Foreign Investment Fasken
Competition enforcement – both by the Competition Bureau and private actors through class actions - has intensified, requiring multi-faceted strategies to avoid challenges and to defend when necessary.
Jurisdiction Ontario, 2006
Language(s) English, Italian
Office(s) Toronto
*practising through a professional corporation

Tony is a Partner and Co-Leader of the firm’s Competition, Marketing and Foreign Investment Group. As former counsel to Canada’s Commissioner of Competition (Department of Justice Canada) and having served as counsel in many of Canada’s most significant competition matters, Tony is widely recognized as one of Canada’s leading practitioners in competition law and litigation. Tony’s expertise is recognized in numerous national and international legal directories, including Chambers, Who’s Who Legal, Global Competition Review, Best Lawyers, Legal 500, Benchmark Litigation and Lexpert. Clients note that Tony “is an absolute pleasure to work with”,  “is an extremely responsive lawyer”,  “has a practical, pragmatic approach to litigation and advisory matters”,  “has a strong international presence”,  “has outstanding knowledge of the Canadian Competition Bureau and its processes” and “deals with government red tape efficiently” (Chambers and Who’s Who Legal).

Tony represents and counsels clients in domestic and multi-jurisdictional competition matters, including mergers, criminal cartel matters, advertising, marketing and consumer protection practices, abuse of dominance and other reviewable practices. Tony represents parties in criminal and civil investigations, litigated proceedings before Canada’s Competition Tribunal and class action litigation. Tony has extensive trial and appellate experience, having appeared as counsel before Canada’s Competition Tribunal, all levels of court in Ontario, the Federal Court of Canada, the Federal Court of Appeal and the Supreme Court of Canada. Tony is particularly experienced with the application of competition laws to the high technology, life sciences, food and agribusiness, financial institutions and transportation industries.

Tony returned to Fasken in 2016 after serving as counsel to Canada’s Commissioner of Competition for a two year term. In this role, Tony directly advised the Commissioner on many of the Competition Bureau’s high-profile cases. Tony represented the Commissioner in complaints and investigations, enforcement matters, the review of mergers, major litigated proceedings and the negotiation of remedies and orders. Tony also secured numerous production orders/subpoenas on behalf of the Commissioner and advised on Competition Bureau enforcement guidelines and competition policy matters.

Tony is a sought-after trainer, speaker and writer on competition issues. He is the author of the leading legal treatise, Competition Enforcement and Litigation in Canada (Emond Publishing) which has been cited variously by Courts in Canada. Tony is an adjunct law professor at Osgoode Hall Law School in Toronto, where he teaches competition law and trial advocacy. Tony is a non-governmental adviser to the International Competition Network, a network of the world's competition authorities that promotes effective global antitrust enforcement. Tony is active in the leadership of the Canadian Bar Association’s National Competition Law Section, currently serving as a Chair of the Mergers Committee and having served as Chair of the Criminal Matters Committee. Tony is also active in the leadership of the American Bar Association’s Section of Antitrust Law, currently serving as a Co-Chair of the Consumer Protection Committee. Tony is a past chair of the Ontario Bar Association’s Class Action Section and currently sits on the Bench and Bar Class Action Liaison Committee in the Province of Ontario. Tony has discussed competition issues with the Globe & Mail, the National Post and the Washington Post, among other media outlets.

Tony’s community work includes serving on the board of directors of York University, the Italian Chamber of Commerce of Ontario and the Hockey Association for the Developmentally Challenged.

Date Client


  • LLB Osgoode Hall Law School at York University
  • BA, (Hons) Summa Cum Laude York University

Community involvement

  • Vice-Chair, York University Alumni Association Board of Directors
    • Chair, Awards Committee
  • Board Member, Hockey Association for the Developmentally Challenged
  • Director, Osgoode Hall Law School Alumni Association Board of Directors (past) 
    • Co-Chair, Awards Committee 
  • Chair, Osgoode Hall Law School Mentorship Program (past)
  • Governor, York University (past)
  • Senator, York University Senate (past) 
  • Small Claims Pro Bono Counsel Project, Pro Bono Law Ontario (past)

Memberships & Affiliations

  • Canadian Bar Association, National Competition Law Section
    • Chair, Criminal Matters Committee
    • Member, Competition Litigation, Mergers, Reviewable Matters/Unilateral and Marketing Practices Committees
  • American Bar Association, Section of Antitrust Law 
    • Vice-Chair, Consumer Protection Committee
    • Editor, Consumer Protection Committee's International Consumer Development Updates
    • Member, Cartel and Criminal Practice Committee
    • Co-Chair, American Bar Association Criminal Justice Section Regional Sub-Committee (Canada) on White Collar Crime
  • Ontario Bar Association
    • Vice-Chair, Class Action Section
    • Member, Civil Litigation Section
  • The Advocates' Society
    • Chair, Young Advocates' Standing Committee (past)
    • Co-Chair, Class Actions Practice Group (past)
    • Member, Board Standing Committees (Education and Operations, Governance and Finance Committees) (past)
    • Task Forces (Paperless Trials Manuals, Communications with Testifying Experts)
    • Co-Chair, Fall Forum 2012 Conference (past)
  • Adjunct Professor, Osgoode Hall Law School/Osgoode Professional Development
    • Lawyer As Negotiator (course focused on dispute resolution and negotiation theory and practice)
    • Intensive Trial Advocacy Workshop (intensive trial advocacy course for lawyers)
  • Defence Research Institute
  • Toronto Lawyers' Association
  • Italian Chamber of Commerce of Ontario
    • Chair, under-40 Division (past)
  • Canadian Italian Advocates Organization 
    • Director, Board of Directors (past)
Speaker Competition and Deceptive Marketing Enforcement in the Digital World Toronto Symposium (9th Edition) location location Toronto, ON
CASL: Time to get Serious about Compliance location location Toronto
Advertising Bargains: Is the Price Right? 2017 Spring Meeting, American Bar Association Section of Antitrust Law location location Washington


    Receive email updates from our team