EXHIBIT 23(a)

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated February 17, 2011 relating to the consolidated financial statements and the effectiveness of internal control over financial reporting, which appears in Alcoa Inc.’s Annual Report on Form 10-K for the year ended December 31, 2010. We also consent to the references to us under the headings “Experts” in such Registration Statement.

/s/ PricewaterhouseCoopers LLP

Pittsburgh, Pennsylvania

February 17, 2011