SECTION 906 CERTIFICATIONS
We, Peter E. Sundman, Chief Executive Officer, and John M. McGovern, Treasurer
and Principal Financial and Accounting Officer, of Neuberger Berman Income
Opportunity Fund Inc. ("Registrant"), certify, pursuant to 18 U.S.C. Section
1350 enacted under Section 906 of the Sarbanes-Oxley Act of 2002, that to our
knowledge:
1. The Registrant's periodic report on Form N-CSR for the period ended
April 30, 2006 fully complies with the requirements of Section 13(a)
or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. Section
78m(a) or 78o(d)); and
2. The information contained in such Form N-CSR fairly presents, in all
material respects, the financial condition and results of operations
of the Registrant.
Dated: July 10, 2006
/s/ Peter E. Sundman
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Peter E. Sundman
Chief Executive Officer
/s/ John M. McGovern
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John M. McGovern
Treasurer and Principal Financial
and Accounting Officer
A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature that
appears in typed form within the electronic version of this written statement
required by Section 906, has been provided to the Registrant and will be
retained by the Registrant and furnished to the Securities and Exchange
Commission or its staff upon request.
This certification is being furnished to the Commission solely pursuant to 18
U.S.C. ss. 1350 and is not being filed as part of the Form N-CSR with the
Commission.