Court of Appeal for Ontario

The Court of Appeal for Ontario is the appellate court for the province of Ontario, Canada. The seat of the court is Osgoode Hall in downtown Toronto.

Description

, the court is composed of 22 judicial seats, in addition to 5 justices who currently sit supernumerary. They hear over 1,500 appeals each year, on issues of private law, constitutional law, criminal law, administrative law and other matters. The Supreme Court of Canada hears appeals from less than 3% of the decisions of the Court of Appeal for Ontario, therefore in a practical sense, the Court of Appeal is the last avenue of appeal for most litigants in Ontario.
Among the Court of Appeal's most notable decisions was the 2003 ruling in Halpern v Canada (AG) that found defining marriage as between one man and one woman to violate Section 15 of the Canadian Charter of Rights and Freedoms, legalizing same-sex marriage in Ontario and making Canada the first jurisdiction in the world where same-sex marriage was legalized by a court ruling. Among many judges from the Court who have been elevated to the Supreme Court of Canada are Justices Rosalie Abella, Louise Arbour, Peter Cory, Louise Charron, Andromache Karakatsanis, Bora Laskin, Michael Moldaver, and Mahmud Jamal, as well as Bertha Wilson, who was the first female justice on both the Court of Appeal for Ontario and the Supreme Court of Canada.
The Court of Appeal derives its jurisdiction from Ontario's .

Current judges

Position	Name	Appointed	Nominated by	Position Prior to Appointment*
Chief Justice	Michael Tulloch	30 6 2012 19 12 2022	Harper J. Trudeau	Superior Court of Justice Private practice
Associate Chief Justice	J. Michal Fairburn	18 7 2017 3 9 2020	J. Trudeau	Superior Court of Justice Stockwoods Ontario Crown Law Office
Justice	Jill Copeland	28 03 2022	J. Trudeau	Superior Court of Justice Ontario Court of Justice
Justice	Steve A. Coroza	06 04 2020	J. Trudeau	Superior Court of Justice Ontario Court of Justice
Justice	Jonathan Dawe	6 11 2023	J. Trudeau	Superior Court of Justice
Justice	Jonathon George	20 12 2021	J. Trudeau	Superior Court of Justice Ontario Court of Justice
Justice	Lise Favreau	20 12 2021	J. Trudeau	Superior Court of Justice
Justice	Sally Gomery	6 11 2023	J. Trudeau	Superior Court of Justice
Justice	Grant Huscroft	16 12 2014	Harper	Professor, Western Law School University of Auckland
Justice	Lene Madsen	1 5 2024	J. Trudeau	Superior Court of Justice
Justice	Bradley W. Miller	26 6 2015	Harper	Superior Court of Justice
Justice	Patrick Monahan	15 05 2023	J. Trudeau	Superior Court of Justice
Justice	Peter Osborne	16 12 2025	M. Carney	Superior Court of Justice
Justice	David M. Paciocco	7 4 2017	J. Trudeau	Ontario Court of Justice Professor at University of Ottawa and Counsel at Edelson Clifford D'Angelo
Justice	Renee Pomerance	24 7 2024	J. Trudeau	Superior Court of Justice
Justice	Mohammed Rahman	7 3 2025	J. Trudeau	Superior Court of Justice Ontario Court of Justice
Justice	Lois Roberts	05 5 2015	Harper	Superior Court of Justice Genest Murray LLP Cassels Brock
Justice	Lorne Sossin	26 11 2020	J. Trudeau	Superior Court of Justice Dean, Osgoode Hall Law School
Justice	Julie Thorburn	01 9 2019	J. Trudeau	Superior Court of Justice
Justice	Gary T. Trotter	20 10 2016	J. Trudeau	Superior Court of Justice Ontario Court of Justice Professor at Queen's University Ontario Crown Counsel
Justice	Darla Wilson	1 5 2024	J. Trudeau	Superior Court of Justice
Justice	Benjamin Zarnett	9 11 2018	J. Trudeau	Goodmans LLP

Supernumerary Justices

Position	Name	Appointed	Nominated by	Position Prior to Appointment*
Supernumerary Justice	Eileen E. Gillese	5 1 2002	Chrétien	Superior Court of Justice
Supernumerary Justice	Peter Lauwers	14 12 2012	Harper	Superior Court of Justice Miller Thompson LLP
Supernumerary Justice	Paul Rouleau	15 4 2005	Martin	Superior Court of Justice Heenan Blaikie
Supernumerary Justice	Janet M. Simmons	23 8 2000	Chrétien	Superior Court of Justice
Supernumerary Justice	Katherine van Rensburg	02 10 2013	Harper	Superior Court of Justice Gowling Lafleur Henderson LLP

Past judges

Name	Time in office	Nominated by
Marc Rosenberg	1995–2015	Jean Chretien
Stephen Goudge	1996–2014	Jean Chretien
Edward W. Ducharme	2012 - 2013	Stephen Harper
Warren Winkler, Chief Justice	2007–2013
Dennis O'Connor	1998–2012	Jean Chretien
Michael Moldaver	1995–2011	Jean Chretien
Andromache Karakatsanis	2010–2011
Marvin A. Catzman	1988–2007
Roy McMurtry	1996–2007 as Chief Justice
Louise Charron	1995–2004	Jean Chretien
Robert P. Armstrong	2002–2013
Rosalie Abella	1992–2004
Louise Arbour	1990–1999
Charles Dubin	1973–1996
William Goldwin Carrington Howland as Chief Justice	1977–1992
Walter Tarnopolsky	1985–1993
Peter Cory	1981–1989
Bert MacKinnon	1974–1987 as Associate Chief Justice
Bertha Wilson	1975–1982
Goldwyn Arthur Martin	1973–1988
Bora Laskin	1965–1970
Jean-Marc Labrosse	1990–2007
Roy Kellock	1942–1944
Henry Hague Davis	1933–1935
Newton Rowell as Chief Justice	1936–1937
Sir William Mulock as Chief Justice	1923–1936
John Douglas Armour	1887–1890
John Hawkins Hagarty as Chief Justice	1884–1897
Thomas Moss as Chief Justice	1878–1880
Robert Alexander Harrison as Chief Justice	1875–1878