The official registered legal name of the institution is Bank of Ayudhya Public Company Limited, written in Thai script as ธนาคารกรุงศรีอยุธยา จำกัด (มหาชน). This formal corporate designation is utilized across all official regulatory filings, stock exchange registrations on the Stock Exchange of Thailand under the ticker symbol BAY, legal contracts, and international compliance documentation governing its multi-faceted corporate operations.