PROSPECTUS Dated May 5, 1999 Pricing Supplement No. 59 to
PROSPECTUS SUPPLEMENT Registration Statement No. 333-75289
Dated May 6, 1999 March 31, 2000
Rule 424(b)(3)
Morgan Stanley Dean Witter & Co.
MEDIUM-TERM NOTES, SERIES C
Senior Fixed Rate Notes
-----------------------
We will not redeem these Medium-Term Notes, Series C (Senior Fixed Rate
Notes) prior to the maturity date. We describe the basic features of this type
of note in the section called "Description of Notes--Fixed Rate Notes" in the
accompanying prospectus supplement, subject to and as modified by the
provisions described below.
Principal Amount: $300,000,000
Maturity Date: April 15, 2003
Settlement Date
(Original Issue Date): April 7, 2000
Interest Accrual Date: April 7, 2000
Issue Price: 99.874%
Specified Currency: U.S. Dollars
Redemption Percentage: 100%
Redemption Dates: N/A
Annual Redemption
Percentage Reduction: N/A
Interest Rate: 7.375% per year
Interest Payment
Dates: Each April 15 and October 15,
commencing October 15, 2000
Interest Payment
Period: Semi-annually
Book Entry Note or
Certificated Note: Book Entry Note
Senior Note or
Subordinated Note: Senior Note
Agent: Morgan Stanley & Co. Incorporated
Trustee: The Chase Manhattan Bank
Minimum
Denomination: $1,000
CUSIP: 61745EPL9
Terms not defined above have the meanings given to such terms in the
accompanying prospectus supplement.
MORGAN STANLEY DEAN WITTER
