While a digital dollar could make sense for interbank transactions, there could be unintended consequences like disruptions to the banking system if the Fed were to design a central bank digital currency that would be directly available to the public, Bowman said in prepared remarks for an event at Georgetown University's Psaros Center for Financial Markets and Policy.

The U.S. central bank has not yet said if it would embark on an effort to create a central bank digital currency, and has previously said it would seek authorization from Congress and the executive branch before doing so.

(Reporting by Ann Saphir and Hannah Lang; Editing by Paul Simao)