John Charles Major CC KC (born February 20, 1931) is a Canadian jurist and was a puisne justice on the Supreme Court of Canada from 1992 to 2005.
Major stepped down from the court on December 25, 2005, approximately two months before the mandatory retirement date of his 75th birthday.
On September 27, 2005 Major served as Administrator of Canada due to the absence of Chief Justice Beverley McLachlin during the transition from Adrienne Clarkson to Michaëlle Jean.
On January 5, 2006, he rejoined the Calgary office of Bennett Jones LLP, the firm with which he practised before his judicial career.
[3] On March 8, 2006, he was appointed by Prime Minister Stephen Harper to lead a public inquiry into the Air India Flight 182 bombing and the resulting trials.