Company: BNRG
Filing Date: 2025-06-09
Form Type: 6-K
Source: 0001213900-25-052346
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Company: Brenmiller Energy Ltd.
Filing Date: 2025-06-09
Form: 6-K
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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
under the Securities Exchange Act of 1934

For the month of June 2025

Commission File Number: 001-41402

BRENMILLER ENERGY LTD.

(Translation of registrant’s name into English)

13 Amal St. 4th Floor, Park Afek

Rosh Haayin, 4809249 Israel(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 ☒ Form 40-F
☐

CONTENTS</div>

On June 9, 2025,
Brenmiller Energy Ltd. (the “Company”) filed a prospectus supplement (the “Prospectus Supplement”) to
supplement and amend the previously filed prospectus supplement, dated June 9, 2023 (the “Prior Prospectus Supplement”),
to increase the dollar amount of ordinary shares, no par value per share (the “Ordinary Shares”), that may be offered
and sold under its Sales Agreement (the “Sales Agreement”) with A.G.P./Alliance Global Partners, dated June 9, 2023, by
$2,381,812. From the date of the Prior Prospectus Supplement to the date of this Report of Foreign Private Issuer on Form 6-K (the
“Report”), the Company has offered and sold $9,348,315 of its Ordinary Shares under the Sales Agreement.

A copy of the opinion of Sullivan &
Worcester Tel-Aviv (Har-Even & Co.) and relating to the legality of the issuance and sale of the Ordinary Shares that may be
sold pursuant to the Prospectus Supplement is attached as Exhibit 5.1 hereto.

This Report is incorporated by reference into the Company’s Registration Statements on Form F-3
(File Nos. 333-283874, 333-272377 and 333-273028)
and Form S-8 (File Nos. 333-272266, 333-278602 and 333-284377),
filed with the Securities and Exchange Commission, to be a part thereof from the date