Donnery, who has been with the central bank for 20 years, will be one of new governor Philip Lane's two deputies and will be responsible for central banking functions, including economics, financial operations and resolution.

In her new role, Donnery will also stand in for Lane if he is unable to attend a meeting of the European Central Bank's governing council, of which he is a member.

(Reporting by Padraic Halpin; Editing by Hugh Lawson)