John G. O'Connor

Lawyer, Partner - Quebec City

Ontario Bar 1986
Québec Bar 1981
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John G. O’Connor has extensive experience in maritime and commercial law. He has handled all types of marine insurance claims including P&I liability, environmental liability and general average, as well as ship financing, maritime accidents and salvage matters. 

He has been especially active in the energy sector and involved in the international carriage and sale of oil, gas and other bulk commodities. He also has extensive experience in marine, errors and omissions and protection and indemnity insurance.

In 2007, John received a BV Peer Review Rating from Lexis Nexis Martindale-Hubbell. John is cited as a leading lawyer in Shipping and Maritime Law by the The Canadian Legal Lexpert® Directory. He is also recommended in that area by Legal Who’s Who. He was selected in The Best Lawyers in Canada in the specialty of Maritime Law.


Langlois Knowledge


John O’Connor has accepted invitations to speak to many organizations within the legal community. He teaches international maritime law and commercial law at McGill University in Montréal.


Since 2000 – Titulary Member of the Comité Maritime International

Since 1986 – London Maritime Arbitrators Association

Since 1984 – Founder and Former President, Association of Maritime Arbitrators of Canada

Since 1981 – Association of Average Adjusters of Canada

Since 1981- Executive Committee, Canadian Maritime Law Association

Since 1976 – Past Chairman, National Maritime Law Section, Canadian Bar Association

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