A bar association is a professional body of lawyers. Some bar associations are responsible for the regulation of the legal profession in their jurisdiction; others are professional organizations dedicated to serving their members; in many cases, they are both.

In many Commonwealth jurisdictions, the "bar association" comprises lawyers who are qualified as barristers or advocates (collectively known as "the bar", or "members of the bar"), while the "law society" comprises solicitors. These bodies are sometimes mutually exclusive. In other jurisdictions, the "bar" may refer to the entire community of persons engaged in the practice of law.