<PAGE>

                                                                    EXHIBIT 12.1

                                 CERTIFICATIONS


I, Arnon Tiberg, certify that:

(1)     I have reviewed this annual report on Form 20-F of Delta Galil
        Industries Ltd.;

(2)     Based on my knowledge, this annual 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 l report;

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

(4)     The registrant's other certifying officer and I are responsible for
        establishing and maintaining disclosure controls and procedures (as
        defined in Exchange Act Rules 13a-14 and 15d-14) for the registrant and
        have:

        (a)     Designed such disclosure controls and procedures to ensure that
                material information relating to the registrant, including its
                consolidated subsidiaries, is made known to us by others within
                those entities, particularly during the period in which this
                annual report is being prepared;

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

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

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

        (b)     any fraud, whether or not material, that involves management or
                other employees who have a significant role in the registrant's
                internal controls; and

(6)     Disclosed in this report any change in the registrant's internal control
        over financial reporting that occurred during the period covered by the
        annual report that has materially affected, or is reasonably likely to
        materially affect, the issuers internal control over financial
        reporting.

        Date: June 22, 2004


                                                 /s/ Arnon Tiberg
                                                 ----------------
                                              Chief Executive Officer