The State Bar of Wisconsin is a mandatory professional association, created by the Wisconsin Supreme Court, for all attorneys who hold a Wisconsin law license. With more than 25,000 members, the State Bar aids the courts in improving the administration of justice, provides continuing legal education and other services for its members, supports the education of law students, and educates the public about the legal system. The State Bar of Wisconsin also provides public services, including attorney referrals, public education and reduced-fee legal assistance for low-income state residents.

Although it was created by the Supreme Court, the State Bar is not a state agency and its operations are not supported with tax revenues. Instead, the private association is supported by member dues and earned revenues (e.g., from the sale of books, legal seminars, and other products). The State Bar does not license or discipline attorneys. These and related activities are administered by separate state agencies.