Company: BBVXF
Filing Date: 2025-12-01
Form Type: 6-K
Source: 0001104659-25-117114
Chunk: 0

Company: BANCO BILBAO VIZCAYA ARGENTARIA, S.A.
Filing Date: 2025-12-01
Form: 6-K
Chunk 0
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<div align='center'>UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of December, 2025

Commission file number: 1-10110

BANCO BILBAO VIZCAYA ARGENTARIA, S.A.

(Exact name of Registrant as specified in its charter)

BANK BILBAO VIZCAYA ARGENTARIA, S.A.

(Translation of Registrant’s name into English)

Calle Azul 4,

28050 Madrid

Spain

(Address of principal executive offices)</div>

Indicate by check mark whether the registrant files
or will file annual reports under cover of Form 20-F or Form 40-F:

<div align='center'>Form 20-F x Form 40-F¨</div>

Indicate by check mark if the registrant is submitting
the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

<div align='center'>Yes ¨ No x</div>

Indicate by check mark if the registrant is submitting
the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

<div align='center'>Yes ¨ No x</div>

Banco Bilbao Vizcaya Argentaria, S.A. (“BBVA”), in compliance with the securities market legislation, hereby communicates
the following:

<div align='center'>OTHER RELEVANT INFORMATION</div>

Further to the
notice of inside information of 30 October 2025, with registration number 2966, relating to the execution of a buyback program of
own shares of BBVA (the “Buyback Program”), and pursuant to article 5 of Regulation (EU) no. 596/2014 of the European
Parliament and of the Council of 16 April 2014 on market abuse, BBVA informs that it has carried out the following transactions over
BBVA shares in execution of the Buyback Program between 24 November and 28 November 2025 (both inclusive):

The cash amount of the shares purchased to date
as a result of the execution of the Buyback Program amounts to 710,265,440.58 Euros, which, approximately