The Central Bank of Ireland's Registers are the official public lists of firms, individuals and financial service providers authorised or supervised by the Central Bank. They cover credit institutions, insurance undertakings, investment firms, payment and electronic money institutions, credit unions, funds and fund service providers, mortgage intermediaries, moneylenders, retail credit firms and virtual asset service providers. Each register records authorisation status, regulatory permissions, legal names, reference numbers, business addresses and any conditions or restrictions.

Collectively the registers promote transparency, consumer protection, compliance and market integrity: consumers can verify lawful authorisation, firms can conduct due diligence and supervisors can publish enforcement outcomes (for example the Fitness & Probity Public Register and the Administrative Sanctions Register). Several registers operate within EU frameworks such as UCITS, AIFMD and MiFID, forming a core element of Ireland's regulatory architecture.