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

Report on Form 6-K dated April 28, 2023

Commission File Number: 001-15092

TURKCELL ILETISIM HIZMETLERI A.S.

(Translation of registrant’s name in English)

Aydınevler Mahallesi İnönü Caddesi No:20

Küçükyalı Ofispark

34854 Maltepe
Istanbul, Turkey

(Address of Principal Executive Offices)

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

Form 20-F ☒     Form 40-F ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):

Yes ☐     No ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):

Yes ☐     No ☒

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 ☒

If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- __________

Enclosure: A press release dated April 28, 2023, regarding the CMB Approval on Debt Instrument Issuance.

Istanbul, April 28, 2023

Announcement Regarding the CMB Approval on Debt Instrument Issuance

With reference to our Company's announcement dated April 26, 2023, Capital Markets Board approved* our application to issue debt instrument on April 27, 2023 with the decision number 65/1610.

*The application form, approved issuance certificate and its annex are available in Turkish on our website.

Authorized Member Decision Date	13.04.2023
Issue Limit and Currency Unit	TRY 8,000,000,000
Issue Limit Security Type	Debt Securities
Sale Type	Private Placement – Sale to Qualified Investor
Domestic/Oversea	Domestic
Capital Market Board Application Date	18.04.2023
Capital Market Board Application Result	Approval
Capital Market Board Approval Date	27.04.2023
Expiry Date of Issue Limit	27.04.2025

For more information:

Turkcell Investor Relations

investor.relations@turkcell.com.tr

Tel: + 90 212 313 1888

SIGNATURES

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

	TURKCELL ILETISIM HIZMETLERI A.S.
Date:  April 28, 2023	By:	/s/ Ali Serdar Yağcı
	Name:  Ali Serdar Yağcı Title:    Investor Relations and Corporate Finance Director

	TURKCELL ILETISIM HIZMETLERI A.S.
Date:  April 28, 2023	By:	/s/ Kamil Kalyon
	Name:  Kamil Kalyon Title:    Chief Financial Officer (Acting)