EXHIBIT 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Forms S-8 (File No. 33-45594; File No. 33-60039; File No. 333-12657; File No. 333-69929; File No. 333-100799; and File No. 333-100798) of Sonoco Products Company of our report dated February 27, 2006, relating to the financial statements, management’s assessment of the effectiveness of internal control over financial reporting and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP

Charlotte, North Carolina
February 27, 2006