The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

  UNITED STATES SECURITIES AND EXCHANGE COMMISSION OMB APPROVAL
  Washington, D.C. 20549
FORM 13F 		OMB Number:   3235-0006
Expires:          July 31, 2015
Estimated average burden
hours per response:       23.8


FORM 13F COVER PAGE


Report for the Calendar Year or Quarter Ended:
12-31-2017
 
Check here if Amendment:      Amendment Number:
 
This Amendment (Check only one.):      is a restatement.
       adds new holdings entries.

Institutional Investment Manager Filing this Report:

Name: Commonwealth Bank of Australia 
Address: GROUND FLOOR, TOWER 1 
  201 SUSSEX STREET 
  SYDNEY, NSW  C3  2000 

Form 13F File Number:   028-14376 


The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name: Clare McManus 
Title: Company Secretary 
Phone: 612-91187208 

Signature, Place, and Date of Signing:

Clare McManus  Sydney, NSW,  AUSTRALIA 02-13-2018 
[Signature] [City, State] [Date]

Do you wish to provide information pursuant to Special Instruction 5?          Yes      X  No

Report Type (Check only one.):

      13F HOLDINGS REPORT. (Check here if all holdings of this reporting manager are reported in this report.)

      13F NOTICE. (Check here if no holdings reported are in this report, and all holdings are reported by other reporting manager(s).)

X  13F COMBINATION REPORT. (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)


List of Other Managers Reporting for this Manager
[If there are no entries in this list, omit this section.]

Form 13F File Number Name
028-00290  NORTHERN TRUST CORP 
028-17598  RUSSELL INVESTMENTS GROUP LTD 
028-14465  MERCER TRUST CO 
028-17483  EMERALD ACQUISITION LTD 

Form 13F Summary Page

Report Summary:

Number of Other Included Managers: 11 
Form 13F Information table Entry Total: 7020 
Form 13F Information table Value Total: 10,197,185 
  (thousands)

List of Other Included Managers:

Provide a numbered list of the name(s) and Form 13F number(s) of all institutional investement managers with respect to which this report is filed, other than the manager filing this report.

   No. Form 13F File Number Name CIK
1  028-14422  Colonial Holding Company Ltd   
2  028-14418  Commonwealth Insurance Holdings Limited   
3  028-14425  Colonial First State Group Limited   
4  028-14417  Capital 121 Pty Ltd   
5  028-14421  Colonial First State Investments Limited   
6  028-14419  Realindex Investment Pty Limited   
7  028-14423  Colonial First State Asset Management (Australia) Limited   
8  028-06518  First State Investment Management (UK) Limited   
9  028-14420  First State Investments (Hong Kong) Limited   
10  028-14523  First State Investments International Limited   
12  028-16989  First State Investments (Singapore)   
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