Pricing Supplement No. 10 dated April 7, 2003
(to Prospectus dated November 18, 2002
and Prospectus Supplement dated November 18, 2002)		   Filed under Rule 424(b)(3)
File No. 333-90316

SLM Corporation
Medium Term Notes, Series A
Due 9 Months or Longer From the Date of Issue

Principal Amount: $300,000,000   Floating Rate Notes: o   Fixed Rate Notes: ý

Original Issue Date:
February 20, 2003
 
Closing Date:  April 15, 2003
 
CUSIP Number:
78442F AN8

Maturity Date:
March 17, 2008
 
Option to Extend Maturity:
ý No
o Yes
 
Specified Currency:
U.S. Dollars
      If Yes, Final Maturity Date:        
Redeemable at the option of the Company:   ý    No   Redemption Price:   Not Applicable.
    o    Yes   Redemption Dates:   Not Applicable.
Repayment at the option of the Holder:   ý    No   Repayment Price:   Not Applicable.
    o    Yes   Repayment Dates:   Not Applicable.

Applicable to Fixed Rate Notes Only:

Interest Rate:    3.625%
 
Interest Payment Dates:
 
Each March 17th and September 17th during the term of the Notes, subject to adjustment in accordance with the following business day convention, beginning September 17, 2003.

Interest Accrual Method:    30/360
 
Interest Periods:
 
From and including the Closing Date, or each March 17th or September 17ththereafter, as the case may be, to and including the next succeeding March 16th or September 16th, as the case may be, with no adjustment to period end dates for accrual purposes.

        The Medium Term Notes, Series A that we are offering by this pricing supplement are a further issuance of, are fungible with and are consolidated to form a single series with, our 3.625% Fixed Rate Medium Term Notes, Series A due March 17, 2008 issued on February 20, 2003. The 3.625% Fixed Rate Medium Term Notes, Series A being offered by this pricing supplement will have the same CUSIP number and will trade interchangeably with the previously issued 3.625% Fixed Rate Medium Term Notes, Series A due March 17, 2008 immediately upon settlement. Currently, $500,000,000 aggregate principal amount of those notes are outstanding. This issuance will increase the aggregate principal amount of the outstanding 3.625% Fixed Rate Medium Term Notes, Series A due March 17, 2008 to $800,000,000.

Banc of America Securities LLC   Credit Suisse First Boston
Joint Book-Running Managers
Banc One Capital Markets, Inc.
JPMorgan		 Merrill Lynch & Co. Citigroup
Wachovia Securities

April 7, 2003


Form:
Book-entry.

Denominations:
$1,000 minimum and integral multiples of $1,000 in excess thereof.

Trustee:
JPMorgan Chase Bank, formerly known as The Chase Manhattan Bank.

Agents:
The following agents are acting as underwriters in connection with this issuance.

 
                Agents
 
Principal Amount of Notes
  Banc of America Securities LLC   $112,500,000
  Credit Suisse First Boston LLC   112,500,000
  Banc One Capital Markets, Inc.   15,000,000
  Citigroup Global Markets Inc.   15,000,000
  J.P. Morgan Securities Inc.   15,000,000
  Merrill Lynch, Pierce, Fenner & Smith Incorporated   15,000,000
  Wachovia Securities, Inc.   15,000,000

 
Total
 
$300,000,000

Issue Price:
100.173% (exclusive of accrued interest).

Agents' Commission:
0.350%.
 
 

Net Proceeds to Issuer:
99.823% (exclusive of accrued interest).
 
 

Net Proceeds:
$301,130,458.33 which equals $299,469,000 of principal plus $1,661,458,33 of accrued interest.
 
 

Concession:
0.250%.
 
 

Reallowance:
0.125%.
 
 

CUSIP Number:
78442F AN8
 
 

ISIN Number:
US78442F AN87
 
 

        Obligations of SLM Corporation and any subsidiary of SLM Corporation are not guaranteed by the full faith and credit of the United States of America. Neither SLM Corporation nor any subsidiary of SLM Corporation (other than Student Loan Marketing Association) is a government-sponsored enterprise or an instrumentality
of the United States of America.