Strategic Research Sponsor of the American Bar Association's Section of International LawThe Queen's Award for Enterpise 2012

Jonathan O'Hara

Jonathan O'Hara
45 O'Connor Street
Suite 2000
K1P 1A4 ON
+1 613.691.6176


Who's Who Legal Canada - Trade & Customs

Jonathan is a regulatory advocate and litigator with particular focus on international trade and customs law.

Jonathan has appeared before the Canadian international trade tribunal in over a dozen hearings in the last five years, including relating to anti-dumping/subsidy and government procurement proceedings.

Jonathan assists companies doing business in Canada with the full range of international trade matters, including complex import and export control issues and compliance with Canada’s economic sanctions. Jonathan regularly represents clients in dealings with administrative decision makers, such as the CBSA in relation to customs, importation and duty matters. 

Jonathan's regulatory work also includes challenging government actions and decisions through judicial review, leading to Jonathan having worked on numerous review proceedings before both the Federal Court and Federal Court of Appeal.

Both governments and private enterprises have relied on Jonathan to understanding the obligations and implications of international trade agreements such as the WTO agreement, the North American Free Trade Agreement (NAFTA), the Agreement on Internal Trade (AIT) and the Comprehensive Economic and Trade Agreement (CETA).

Jonathan has assisted a wide range of clients, ranging from multi-billion dollar transnationals based in the US, Japan or India and their Canadian subsidiaries, to local growing businesses. Jonathan's clients come from a variety of industries, including manufacturing, information technology and automotive.

In addition to numerous appearances before the Federal Court and Federal Court of Appeal, Jonathan has appeared before all levels of the Ontario courts in commercial disputes, including on appellate matters. Jonathan has successfully acted as counsel in trials (including obtaining punitive damages) and in a variety of motions, including interlocutory injunctions and motions for contempt. 

Jonathan practices primarily out of McMillan’s Ottawa office, in the nation’s capital, in close proximity to the headquarters of many Canadian federal regulatory agencies, tribunals and courts.

In law school, Jonathan's advocacy skills lead to great success in international moot court competitions. Jonathan and his team won the Vis International Commercial Arbitration moot in Vienna, Austria. He and his team also placed second in the ELSA WTO moot, arguing before a number of WTO appellate body and panel members.

Jonathan's previous career experience includes working in the tech sector as a software developer and architect, and working as a section chief with the federal public service.

WWL says: Jonathan O’Hara is an “extremely capable up-and-coming trade lawyer”, who is active before the Canadian International Trade Tribunal on anti-dumping and subsidy mandates.

This biography is an extract from Who's Who Legal: Canada which can be purchased from our Shop.

Other Practice Areas:

Follow us on LinkedIn

Practice Areas


Browse Firms

Search Firms

The Who's Who Legal 100


News & Features

Special Reports



About Us

It is not possible to buy entry into any Who's Who Legal publication

Nominees have been selected based upon comprehensive, independent survey work with both general counsel and private practice lawyers worldwide. Only specialists who have met independent international research criteria are listed.

Copyright © 2017 Law Business Research Ltd. All rights reserved. |

87 Lancaster Road, London, W11 1QQ, UK | Tel: +44 20 7908 1180 / Fax: +44 207 229 6910 |

Law Business Research Ltd

87 Lancaster Road, London
W11 1QQ, UK