ALCOA CORPORATION

POWER OF ATTORNEY

     KNOW ALL PERSONS BY THESE PRESENTS, that I, the undersigned director and/or
officer (or nominee) of Alcoa Corporation, a Delaware corporation (the
"Company"), hereby constitute and appoint Andrew Hastings, Marissa P. Earnest,
Megan C. Yancey, Mary A. Vogel, Lynne Thomas, and any Assistant Secretary of the
Company, and each of them, my true and lawful attorneys-in-fact and agents, with
full power to act, together or each without the other, with full power of
substitution and resubstitution, in the undersigned's name, place and stead, in
any and all capacities, to prepare, execute and file for and on behalf of the
undersigned (i) any reports on Forms 3, 4 and 5 (including any amendments
thereto and any successors to such Forms) with respect to ownership, acquisition
or disposition of securities of the Company that the undersigned may be required
to file with the U.S. Securities and Exchange Commission (the "SEC") in
accordance with Section 16(a) of the Securities Exchange Act of 1934, as amended
(the "Exchange Act"), the rules and regulations promulgated thereunder, and with
any stock exchange or similar authority, (ii) any voluntary filings under
Section 16(a) of the Exchange Act, (iii) a Form ID (including amendments
thereto) and any other documents necessary or appropriate to obtain codes and
passwords enabling the undersigned to electronically file reports required by
Section 16(a) of the Exchange Act or any rule or regulation of the SEC, (iv) any
reports that may be required under SEC Rule 144 to permit the undersigned to
sell Company common stock without registration under the Securities Act of 1933,
as amended (the "Securities Act") in reliance on Rule 144 as amended from time
to time, or (v) take any other action of any type whatsoever in connection with
the foregoing which, in the opinion of such attorneys-in-fact, may be of benefit
to, in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorneys-in-fact on behalf of
the undersigned pursuant to this Power of Attorney shall be in such form and
shall contain such terms and conditions as such attorneys-in-fact may approve in
such attorney-in-fact's or attorneys-in-facts' discretion.

     The undersigned acknowledges that the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, are not assuming,
nor is the Company assuming, any of the undersigned's responsibilities to comply
with Section 16 of the Exchange Act or the Securities Act.  The Company will use
all reasonable efforts to apprise the undersigned of applicable filing
requirements for purposes of Section 16(a) of the Exchange Act or the Securities
Act.

     This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms 3, 4 and 5 with respect to the
undersigned's holdings and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.  This Power of Attorney revokes and replaces any
prior Power of Attorney executed by the undersigned with respect to the matters
described herein.


      IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 8th day of September, 2023.





Signature /s/ Nicol Gagstetter


Printed Name Nicol Gagstetter