Company: KYIV
Filing Date: 2025-08-14
Form Type: 6-K
Source: 0001213900-25-076658
Chunk: 0

Company: Kyivstar Group Ltd.
Filing Date: 2025-08-14
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>

On August 14, 2025, Kyivstar
Group Ltd. (NASDAQ: KYIV) (the “Company”) issued a press release in relation to the closing of its business combination with
Cohen Circle Acquisition Corp. I (“Cohen Circle”). A copy of this press release is attached to this Form 6-K 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 14, 2025 | Kyivstar Group Ltd. |                     |                         |
|:----------------------|:--------------------|:--------------------|:------------------------|
|                       | By:                 | /s/ Boris Dolgushin |                         |
|                       |                     | Name:               | Boris Dolgushin         |
|                       |                     | Title:              | Chief Financial Officer |

<div align='center'>2

EXHIBIT INDEX</div>

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