Company: KYIV
Filing Date: 2025-08-15
Form Type: 6-K
Source: 0001213900-25-077595
Chunk: 0

Company: Kyivstar Group Ltd.
Filing Date: 2025-08-15
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 August, 2025

Commission File Number: 001-42804

Kyivstar Group Ltd.

(Translation of registrant’s name into English)

Unit 517, Level 5

Index Tower

Dubai International Financial Centre (DIFC)

United Arab Emirates

(Address of principal executive office)</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 ☐

EXPLANATORY NOTE</div>

An updated investor presentation
used by Kyivstar Group Ltd. (NASDAQ: KYIV) and Cohen Circle Acquisition Corp. I is attached to hereto as Exhibit 99.1.

<div align='center'>1

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: August 15, 2025

| Kyivstar Group Ltd. |                         |
| By:                 | /s/ Boris Dolgushin     |
| Name:               | Boris Dolgushin         |
| Title:              | Chief Financial Officer |

<div align='center'>2

EXHIBIT INDEX</div>

| Exhibit |     | Description                              |
| 99.1    |     | Investor Presentation, dated August 2025 |

<div align='center'>3</div>