EXHIBIT 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on Form S-3 (No. 333-100119 and No. 333-89950) and S-8 (No. 333-130395, No. 333-50934, No. 33-87572, and No. 333-69588) of NN, Inc. of our report dated March 17, 2008 relating to the financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

PricewaterhouseCoopers LLP

Charlotte, North Carolina

March 17, 2008