Company: WEBNF
Filing Date: 2025-02-18
Form Type: 6-K
Source: 0001104659-25-014446
Chunk: 0

Company: WESTPAC BANKING CORP
Filing Date: 2025-02-18
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE
13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

February 18, 2025

Commission File Number 1-10167

WESTPAC BANKING CORPORATION

(Translation of registrant’s name into English)

(Address of principal executive office)

Indicate by check mark whether the registrant files
or will file annual reports

under cover of Form 20-F or Form 40-F.

Form 20-F x Form 40-F ¨</div>

Indicate by check mark if the registrant is submitting the Form 6-K
in paper as permitted by Regulation S-T Rule 101(b)(1): ¨

Indicate by check mark if the registrant is submitting the Form 6-K
in paper as permitted by Regulation S-T Rule 101(b)(7): ¨

Incorporation by Reference

The information contained
in this Report on Form 6-K, including the information set forth in Exhibit No. 1, but excluding the information set forth
in Exhibit No. 2 and Exhibit No. 3 shall be incorporated by reference in the prospectuses relating to the Registrant’s
securities contained in the Registrant’s Registration Statements on Form F-3 (File Nos. 333-283007 and 333-283008), as such
prospectuses may be amended or supplemented from time to time.

The financial information
for the three months ended December 31, 2024 has not been audited or reviewed by any independent registered public accounting firm
and has been derived from the unaudited financial statements for the quarterly period ended December 31, 2024. Any other financial
information provided as at a date after September 30, 2024 has not been audited or reviewed by any independent registered public
accounting firm either. The information contained in this Report is based on management’s current information, including management’s
view of a wide variety of significant business, economic and competitive risks and uncertainties. Certain data herein may involve underlying
estimates, assumptions and judgments when applying accounting policies and preparing its financial statements, particularly in connection
with the calculation of provisions. Any change in such estimates, assumptions and/or judgments resulting from new information or from
changes in