SECURITIES AND EXCHANGE COMMISSION
Washington, DC  20549

FORM 6-K

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16 of
the Securities Exchange Act of 1934

April 16, 2007

Commission File Number 1-10167

WESTPAC BANKING CORPORATION
(Translation of registrant’s name into English)

275 KENT STREET, SYDNEY, NEW SOUTH WALES 2000, AUSTRALIA
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports
under cover of Form 20-F or Form 40-F.

Indicate by check mark whether the registrant by furnishing the information contained in
this form is also thereby furnishing the information to the Commission pursuant to
Rule 12g3-2(b) under the Securities Act of 1934.

If “Yes” is marked, indicate the file number assigned to the registrant in connection with
Rule 12g3-2(b):82-___

Index to Exhibits

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

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