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                                                                    Exhibit 31.1

                                  CERTIFICATION

I, W. Bruce Turner, President and Chief Executive Officer of GTECH Holdings
Corporation (the "Company"), certify that:

(1)      I have reviewed this quarterly report on Form 10-Q of the Company;

(2)      Based on my knowledge, this quarterly report does not contain any
         untrue statement of a material fact or omit to state a material fact
         necessary to make the statements made, in light of the circumstances
         under which such statements were made, not misleading with respect to
         the period covered by this quarterly report;

(3)      Based on my knowledge, the financial statements, and other financial
         information included in this quarterly report, fairly present in all
         material respects the financial condition, results of operations and
         cash flows of the Company as of, and for, the periods presented in this
         quarterly report;

(4)      The Company's other certifying officer and I are responsible for
         establishing and maintaining disclosure controls and procedures (as
         defined in Exchange Act Rules 13a -15(e) and 15d-15(e)) for the Company
         and we have:

         (a)      designed such disclosure controls and procedures, or caused
                  such disclosure controls and procedures to be designed under
                  our supervision, to ensure that material information relating
                  to the Company, including its consolidated subsidiaries, is
                  made known to us by others within those entities, particularly
                  during the period in which this quarterly report was being
                  prepared;

         (b)      evaluated the effectiveness of the Company's disclosure
                  controls and procedures and presented in this quarterly report
                  our conclusions about the effectiveness of the disclosure
                  controls and procedures, as of the end of the period covered
                  by this quarterly report based on such evaluation; and

         (c)      disclosed in this quarterly report any change in the Company's
                  internal control over financial reporting (as defined in
                  Exchange Act Rules 13-15(f) and 15d-15(f)) that occurred
                  during the Company's most recent fiscal quarter that has
                  materially affected, or is reasonably likely to materially
                  affect, the Company's internal control over financial
                  reporting; and

(5)      The Company's other certifying officer and I have disclosed, based on
         our most recent evaluation, of internal control over financial
         reporting, to the Company's auditors and the audit committee of the
         Company's board of directors:

         (a)      all significant deficiencies and material weaknesses in the
                  design or operation of internal control over financial
                  reporting which are reasonably likely to adversely affect the
                  Company's ability to record, process, summarize and report
                  financial information; and

         (b)      any fraud, whether or not material, that involves management
                  or other employees who have a significant role in the
                  Company's internal control over financial reporting.

                                          GTECH HOLDINGS CORPORATION

Date: January 5, 2004                     By   /s/  W. Bruce Turner
                                          -------------------------------------
                                          W. Bruce Turner
                                          President and Chief Executive Officer