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<title>Prepared By R.R. Donnelley Financial -- Form 8-K</title>
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<b>UNITED STATES </b></font></div>

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<b>SECURITIES AND EXCHANGE COMMISSION </b></font></div>

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<b>Washington, D.C. 20549 </b></font></div>

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<b>Form 8-K </b></font></div> <div><font Size="1">&nbsp;</font></div>

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<b>Current Report </b></font></div>

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<b>Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 </b></font></div>

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<b>Date of Report (Date of earliest event reported):&nbsp;&nbsp;09/11/2006 </b></font></div>




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<b>Sun Microsystems, Inc. </b></font></div>

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<b>(Exact name of registrant as specified in its charter)</b></font></div>

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<b>Commission File Number:&nbsp;&nbsp;0-15086</b></font></div>

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<div Align="center"><font Face="times New Roman" Size="3" Color="#000000"><b>Delaware</b></font>
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<b>(State or other jurisdiction of</b></font>
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<div Align="center"><font Face="times New Roman" Size="2" Color="#000000"><b>(IRS Employer</b></font>
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<b>incorporation)</b></font>
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<b>Identification No.)</b></font>
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<b>4150 Network Circle</div><div Align="center">Santa Clara, California 95054-1778</b></font></div>


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<b>(Address of principal executive offices, including zip code)</b></font>
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<b>(650) 960-1300 </b></font>
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<b>(Registrant&#146;s telephone number, including area code)</b></font>
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<b>N/A </b></font>
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<b>(Former name or former address, if changed since last report) </b></font>
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<b>Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:<BR><BR>
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<b>[&nbsp;&nbsp;]&nbsp;&nbsp;
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<BR><BR>

[&nbsp;&nbsp;]&nbsp;&nbsp;
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<BR><BR>


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Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<BR><BR>


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Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
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Information to be included in the report</b>
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<b>Item 5.02.&nbsp;&nbsp;&nbsp;&nbsp;Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers</b></font>
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On September 11, 2006, Sun Microsystems, Inc. ("Sun") appointed Kalyani Chatterjee to the position of Chief Accounting Officer (Principal Accounting Officer). The appointment is effective September 14, 2006. The responsibilities of Principal Accounting Officer were previously held by Barry Plaga, who will serve as Sun's Vice President, Financial Global Processes.<p>Ms. Chatterjee, 43, served as Vice President, Finance and Assistant Controller since February 2006. From March 2004 to February 2006, Ms. Chatterjee served as Sun's Senior Director and Assistant Corporate Controller. From January 2003 to March 2004, Ms. Chatterjee served as the Vice President, Finance with Hotwire, Inc. From January 2000 to November 2002, Ms. Chatterjee served as a Senior Manager at KPMG, LLP.</font>
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<b>Signature(s) </b></font>
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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 hereunto
duly authorized. </font>
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	Sun Microsystems, Inc.</font>
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	Date: September 15, 2006</font>
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	By:</font>
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	/s/&nbsp;&nbsp;&nbsp;&nbsp;Michael A. Dillon</font>
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	Michael A. Dillon</font>
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	<div><font Face="times New Roman" Size="2" Color="#000000">Executive Vice President, General Counsel and Secretary</font>
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{"company-data": {"conformed-name": "SUN MICROSYSTEMS, INC.", "cik": "0000709519", "assigned-sic": "3571", "irs-number": "942805249", "state-of-incorporation": "DE", "fiscal-year-end": "0630"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-15086", "film-number": "061092952"}, "business-address": {"street1": "4150 NETWORK CIRCLE", "city": "SANTA CLARA", "state": "CA", "zip": "95054", "phone": "6509601300"}, "mail-address": {"street1": "4150 NETWORK CIRCLE", "city": "SANTA CLARA", "state": "CA", "zip": "95054"}, "former-company": {"former-conformed-name": "SUN MICROSYSTEMS INC", "date-changed": "19920703"}}
Prepared By R.R. Donnelley Financial -- Form 8-K
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 8-K
Current Report
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported):  09/11/2006
Sun Microsystems, Inc.
(Exact name of registrant as specified in its charter)
Commission File Number:  0-15086
Delaware
94-2805249
(State or other jurisdiction of
(IRS Employer
incorporation)
Identification No.)
4150 Network Circle
Santa Clara, California 95054-1778
(Address of principal executive offices, including zip code)
(650) 960-1300
(Registrant's telephone number, including area code)
N/A
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
[  ]  
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
[  ]  
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
[  ]  
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
[  ]  
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Information to be included in the report
Item 5.02.    Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers
On September 11, 2006, Sun Microsystems, Inc. ("Sun") appointed Kalyani Chatterjee to the position of Chief Accounting Officer (Principal Accounting Officer). The appointment is effective September 14, 2006. The responsibilities of Principal Accounting Officer were previously held by Barry Plaga, who will serve as Sun's Vice President, Financial Global Processes.
Ms. Chatterjee, 43, served as Vice President, Finance and Assistant Controller since February 2006. From March 2004 to February 2006, Ms. Chatterjee served as Sun's Senior Director and Assistant Corporate Controller. From January 2003 to March 2004, Ms. Chatterjee served as the Vice President, Finance with Hotwire, Inc. From January 2000 to November 2002, Ms. Chatterjee served as a Senior Manager at KPMG, LLP.
Signature(s)
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 hereunto
duly authorized.
Sun Microsystems, Inc.
Date: September 15, 2006
By:
/s/    Michael A. Dillon
Michael A. Dillon
Executive Vice President, General Counsel and Secretary