OppenheimerFunds, Inc.
Two World Financial Center
225 Liberty Street, 11th Floor
New York, New York 10281-1008

January 28, 2010

VIA EDGAR

Securities and Exchange Commission
Mail Stop 0-7, Filer Support
6432 General Green Way
Alexandria, VA 22312
 

Re:     Oppenheimer Core Bond Fund

Post-Effective Amendment No. 50 under the Securities Act

and Amendment No. 51 under the Investment Company Act

File Nos. 2-76547; 811-3420                          

To the Securities and Exchange Commission:
 

An electronic (EDGAR) filing is transmitted herewith pursuant to the Securities Act of 1933, as amended (the "Securities Act"), and the Investment Company Act of 1940, as amended (the "Investment Company Act"), on behalf of Oppenheimer Core Bond Fund (the “Fund”). This filing constitutes Post-Effective Amendment No. 50 under the Securities Act and Amendment No. 51 under the Investment Company Act (the “Amendment”) to the Fund's Registration Statement on Form N-1A (the “Registration Statement”).

This filing is being made pursuant to Rule 485(a) under the Securities Act, to comply with the requirements of Securities and Exchange Commission (the “Commission”) Release 33-8998, adopting amendments to Form N-1A that require every prospectus to include a summary section at the front of the prospectus. This filing also includes certain non-material changes.

We anticipate that an amendment to the Registration Statement will be filed on or about March 26, 2010, including (i) audited financial statements for the Registrant’s fiscal year ended December 31, 2009; (ii) responses to any comments of the Commission staff on this filing; and (iii) other, non-material changes. The Amendment and the subsequent filing should become effective on March 30, 2010, as indicated on the facing page of this Amendment.

In order to expedite review and achieve consistency in how we address the disclosure requirements of SEC Release 33-8998 we request that you address any comments on this filing, to the undersigned:

Nancy S. Vann
Vice President & Associate Counsel
OppenheimerFunds, Inc.
Two World Financial Center
225 Liberty Street, 11th Floor
New York, New York 10281
212-323-5089
nvann@oppenheimerfunds.com

Sincerely,
 

/s/ Sean Ryan               

Sean Ryan

Assistant Vice President &
Assistant Counsel

212-323-0987
sryan@oppenheimerfunds.com

cc:     Kate Ives

     Nancy Vann

     Taylor Edwards

     Carlos Santiago

     Jemimah Tacadena

     Gloria LaFond

     K&L Gates LLP