Company: PBR
Filing Date: 2025-08-28
Form Type: 6-K
Source: 0001292814-25-003164
Chunk: 0

Company: PETROBRAS - PETROLEO BRASILEIRO SA
Filing Date: 2025-08-28
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 Private
Issuer
Pursuant to Rule 13a-16 or 15d-16 of the

Securities Exchange
Act of 1934

For the month of August, 2025

Commission File Number 1-15106

PETRÓLEO BRASILEIRO S.A. – PETROBRAS

(Exact name of registrant
as specified in its charter)

Brazilian Petroleum Corporation – PETROBRAS

(Translation of Registrant's
name into English)

Avenida Henrique Valadares, 28 – 9th floor
20231-030 – Rio de Janeiro, RJ
Federative Republic of Brazil

(Address of principal
executive office)

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

Form 20-F ___X___ Form
40-F _______

Indicate by check mark
whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission
pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes _______ No___X____</div>

Petrobras Announces Nomination of Member to Board of Directors

—

Rio de Janeiro, August 27, 2025 –Petróleo Brasileiro S.A. – Petrobras informs that it has received a letter from the Ministry of Mines and Energy appointing
Mr. Marcelo Weick Pogliese to the position of member of the Company’s Board of Directors, to fill the position previously held by
Mr. Pietro Adamo Sampaio Mendes.

The nomination will be submitted to internal
governance procedures, including compliance and integrity analysis, and will be appreciated by the People Committee and the Board of Directors,
pursuant to Article 150 of Law 6,404/76 and Article 25 of the Company’s Bylaws.

Mr. Marcelo Weick Pogliese is an attorney,
holds a postdoctoral degree in Public Law from the University of Santiago de Compostela, a PhD in Law from the State University of Rio
de Janeiro (UERJ), and a Master’s degree in Law from the Federal University of Rio Grande do Norte (