A financial regulatory authority or financial supervisory authority, alternatively financial regulator or financial supervisor, is a public authority whose role is to ensure the proper implementation of financial regulation within its scope of responsibility. Some, though not all, such authorities also set financial rules of their own.
Financial supervisory authorities include those in charge of bank supervision; of securities regulation, often referred to as securities commissions; of anti–money laundering supervision of financial firms; of consumer protection in financial services, and more generally of enforcing "conduct-of-business" requirements; of macroprudential regulation; and of audit oversight, under a separate authority in many jurisdictions. Several deposit guarantee schemes also have a supervisory role associated with their involvement in bank resolution.