Exhibit 32

Certification
Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
(Subsections (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code)
Pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code), each of the undersigned officers of FNB United Corp., a North Carolina corporation (the “Corporation”), does hereby certify that:
The Quarterly Report on Form 10-Q for the quarter ended March 31, 2012 (the “Form 10-Q”) of the Corporation fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 10-Q fairly presents, in all materials respects, the financial condition and results of operations of the Corporation.


Date:    May 15, 2012                    /s/ BRIAN E. SIMPSON        
Brian E. Simpson        
Chief Executive Officer


Date:    May 15, 2012                    /s/ DAVID L. NIELSEN        
David L. Nielsen
Chief Financial Officer


The foregoing certification is being furnished solely pursuant to section 906 of the Sarbanes-Oxley Act of 2002 (subsections (a) and (b) of section 1350, chapter 63 of title 18, United States Code) and is not being filed as part of the Form 10-Q or as a separate disclosure document.