EXHIBIT 32.1 CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. 1350 In connection with the Form 10-K (the "Report") of Ferro Corporation (the "Company") [Name of Report] [Name of Company] for the period ending December 31, 2003, I, Hector R. Ortino , Chairman and Chief Executive Officer [Date] [Name of Officer] [Title] of the Company, certify that: (1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. /s/ Hector R. Ortino - ------------------------------- Hector R. Ortino Chairman and Chief Executive Officer Dated: March 12, 2004 61