EXHIBIT 23.01

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-171217 and 333-179182) of Gerdau S.A. of our report dated March 28, 2024 relating to the consolidated financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 20-F.

/s/ PricewaterhouseCoopers Auditores Independentes Ltda.

Porto Alegre, Brazil

March 28, 2024