Exhibit 23.01

We consent to the incorporation by reference in the registration statements (Nos. 33-72686, 333-54702, 333-99333, 333-105442, 333-109450, 333-133734, 333-143703, 333-144132 and 333-180604) on Form S-8 and the registration statements (Nos. 033-59565 and 333-158219) on Form S-3 of FNB United Corp. and Subsidiaries (the “Company”) of our reports dated March 8, 2013, with respect to the consolidated financial statements of FNB United Corp. and Subsidiaries and the effectiveness of internal control over financial reporting, which reports appear in the December 31, 2012 annual report on Form 10-K of FNB United Corp. and Subsidiaries.