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) – December 20, 2004

MELLON FINANCIAL CORPORATION

(Exact name of registrant as specified in charter)

Pennsylvania	1-7410	25-1233834
(State or other jurisdiction of incorporation)	(Commission File Number)	(I.R.S. Employer Identification No.)

One Mellon Center 500 Grant Street Pittsburgh, Pennsylvania	15258
(Address of principal executive offices)	(Zip code)

Registrant’s telephone number, including area code – (412) 234-5000

(Former name or former address, if changed since last report)

N/A

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))

ITEM 8.01. OTHER EVENTS

By press release dated December 20, 2004, Mellon Financial Corporation announced the completion of its previously announced acquisition of The Providence Group Investment Advisory Company, a privately held, Providence-based firm specializing in meeting the investment needs of high net worth individuals and families. Terms of the deal, first announced on September 7, were not disclosed.

ITEM 9.01. FINANCIAL STATEMENTS AND EXHIBITS

Exhibit Number	Description
99.1	Press Release dated December 20, 2004, announcing the matter referenced in Item 8.01 above.

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.

Dated: December 20, 2004	MELLON FINANCIAL CORPORATION
	By:	/s/ MICHAEL A. BRYSON
		Michael A. Bryson Chief Financial Officer

EXHIBIT INDEX

Number	Description	Method of Filing
99.1	Press release dated December 20, 2004	Filed herewith