Company: TNRSF
Filing Date: 2025-04-07
Form Type: 6-K
Source: 0001171843-25-002038
Chunk: 0

Company: TENARIS SA
Filing Date: 2025-04-07
Form: 6-K
Chunk 0
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<div align='center'>FORM 6 - K</div>

### SECURITIES AND EXCHANGECOMMISSION
<div align='center'>Washington, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a - 16 or 15d - 16 of

the Securities Exchange Act of 1934</div>

As of April 4, 2025

#### TENARIS,S.A.
<div align='center'>(Translation of Registrant's name into English)

26, Boulevard Royal, 4th floor

L-2449 Luxembourg

(Address of principal executive offices)

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

Form 20-F
Form 40-F</div>

The attached material is being furnished to the Securities and Exchange Commission
pursuant to Rule 13a- 16 and Form 6-K under the Securities Exchange Act of 1934, as amended. This report contains Tenaris’s
Notice of the Annual General Meeting of Shareholders and on an Extraordinary General Meeting of Shareholders to be held on 6
May 2025 and the Shareholder Meeting Brochure and Proxy Statement.

<div align='center'>SIGNATURE</div>

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant
has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: April 4, 2025

<div align='center'>Tenaris, S.A.</div>

By: /s/ Giovanni Sardagna

Giovanni Sardagna

Investor Relations
Officer

<div align='center'>Tenaris S.A.

Société Anonyme

26, Boulevard Royal, 4 Floor.

L-2449 Luxembourg

RCS Luxembourg B 85 203

NOTICE OF THE ANNUAL GENERAL MEETING OF SHAREHOLDERS AND OF AN EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS

to be held in Luxembourg on 6 thMay 2025</div>

Notice is hereby given to holders of ordinary shares of Tenaris S.A. (the
“Company”) that the Annual General Meeting of Shareholders of the Company will be held on 6 May 2025, at 10:00
(Central European Time) and that an Extraordinary General Meeting of Shareholders of the Company