The Thunder Bay Law Association is a voluntary organization of lawyers residing and practicing law in the District of Thunder Bay on the northwestern shore of Lake Superior. The Association provides continuing legal education and specialized library services to its members, organizes social events and generally represents the interests of the legal community to government and the public.

The Thunder Bay Law Association was formed in 1905. Today the membership numbers approximately 290 and is administered by a 20 member Board of Directors. The Board meets monthly throughout the year with various committees meeting as needed.