List of reasons written by Justice John Sopinka during his time as Puisne Justice of the Supreme Court of Canada.
1988–1990
- United States v Cotroni, 1 SCR 1469 (Dissent)
- R v Hebert, 2 SCR 151 (Concurrence)
- Central Alberta Dairy Pool v Alberta (Human Rights Commission), 2 SCR 489 (Concurrence)
- R v Martineau, 2 SCR 633 (Concurrence)
- R v Askov, 2 SCR 1199 (Concurrence)
- R. v. Garofoli, 2 S.C.R. 1421 (Majority)
- Douglas/Kwantlen Faculty Assn v Douglas College, 3 SCR 570 (Concurrence)
1991–1993
- Reference re Provincial Electoral Boundaries (Sask), 2 SCR 158 (Concurrence)
- Reference Re Canada Assistance Plan (BC), 2 SCR 525 (Majority)
- R v Stinchcombe, 3 SCR 326 (Majority)
- R v Jobidon, 2 SCR 714 (Dissent)
- Reference Re Ng Extradition 2 SCR 858 (Dissent)
- R v Butler, 1992 (Majority)
- R v DeSousa, 1992 (Majority)
- Canada (Minister of Employment and Immigration) v Chiarelli, 1 SCR 711 (Majority)
- New Brunswick Broadcasting Co v Nova Scotia (Speaker of the House of Assembly), 1 SCR 319 (Concurrence)
- Amchem Products Inc v British Columbia (Workers' Compensation Board), 1 SCR 897 (Majority)
- R v Morgentaler 3 SCR 463 (Majority)
- Rodriguez v British Columbia (AG), 3 SCR 519 (Majority)
1994–1997
- Native Women's Assn of Canada v Canada, 3 SCR 627 (Majority)
- R v Mohan, 2 SCR 9 (Concurrence)
- R v Daviault 3 SCR 6 (Dissent)
- R v Burlingham, 2 SCR 206 (Concurrence)
- Egan v Canada, 2 SCR 513 (Concurrence)
- R v Park, 2 SCR 836 (Concurrence)
- R v Jorgensen, 4 SCR 55 (Majority)
- Adler v Ontario (AG), 3 SCR 609 (Concurrence)
- R v Badger, 1 SCR 771 (Concurrence)
- R v Feeney, 2 SCR 13 (Majority)
Note: This list is incomplete
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| Reasons by year (1982 to date) | |||||||
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| Cases and reasons by type of judgment | |||||||