A tribunal is a specialist body that decides particular types of legal disputes, often as a quicker, cheaper and more informal alternative to the ordinary courts. In practice, tribunals determine matters such as employment rights, immigration and asylum, social security, tax, planning, mental health, professional discipline and regulatory appeals.Across the UK and Ireland, “tribunal” is largely a descriptive term rather than a single, codified concept, though individual tribunals and tribunal systems are created and governed by specific statutes. In England and Wales, and Scotland, most reserved matters fall within the unified First-tier Tribunal and Upper Tribunal structure under the Tribunals, Courts and Enforcement Act 2007, alongside specialist bodies such as Employment Tribunals. Northern Ireland and Ireland each have their own tribunal systems, established under separate legislation, but serving similar adjudicative functions.Tribunals typically have legally qualified judges and lay members with subject-matter expertise, apply rules of procedure and evidence that are more flexible than those of the courts, and provide rights of appeal or judicial review. They are central to administrative and regulatory law, ensuring access to justice and the lawful exercise of public and professional powers.