This handy chart from Thomson Reuters notes the changing names of Canadian courts over time. Please note that while it is useful for historical purposes, it is only current to 2022.
This is Canada's most comprehensive collection of case digests (summaries), covering almost every reported case in Canada since 1803 (with the exception of Quebec civil law cases).
A large collection of full-text reproductions of legal and law-related publications from the United States, Canada, the United Kingdom, and other countries.
Includes the open access Indigenous Law Portal, which is organized by region and provides full-text primary and secondary sources.
The Judicial Committee of the Privy Council (JCPC) was the court of final appeal for Canada until 1949 (though decisions were issued until 1959). This database of JCPC decisions may also include the parties' factums.
This guide from the University of Windsor Law Library explains how to access court records from Canadian jurisdictions. Please note that for most older records, you will need to contact the court or archive to request a copy.
Browse factums held by other Ontario university libraries at this link. It may be possible to borrow them by clicking on the yellow banner in the record that says "Please sign in to check if there are any request options" and following the instructions.