Exhibit 31.1

CERTIFICATION

I, Gary L Westerholm, certify that:

(1)	I have reviewed this Quarterly Report on Form 10-QSB of McKenzie Bay
International, Ltd.;

(2)	Based on my knowledge, this 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 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 small business
issuer as of, and for, the periods presented in this report;

(4)	The small business issuer'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)) and internal control
over financial reporting (as defined in Exchange Act Rules 13a-15(f) and
15d-15(f)) for the small business issuer and 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 small business issuer,
   including its consolidated subsidiaries, is made known to us by others within
   those entities, particularly during the period in which this report is being
   prepared;

   (b)	Designed such internal control over financial reporting, or caused such
   internal control over financial reporting to be designed under our
   supervision, to provide reasonable assurance regarding the reliability of
   financial reporting and the preparation of financial statements for external
   purposes in accordance with generally accepted accounting principles;

   (c)	Evaluated the effectiveness of the small business issuer'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

   (d)	Disclosed in this report any change in the small business issuer's
   internal control over financial reporting that occurred during the small
   business issuer's most recent fiscal quarter (the small business issuer's
   fourth fiscal quarter in the case of an annual report) that has materially
   affected, or is reasonably likely to materially affect, the small business
   issuer's internal control over financial reporting; and

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

   (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 small business issuer'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 small business issuer's internal
   control over financial reporting.

Date: May 23, 2005

/s/ Gary L. Westerholm
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    Gary L. Westerholm
Principal Executive Officer