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 July 3, 2018

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 MaltepeIstanbul, 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 July 3, 2018, regarding capital increase in Lifecell Ventures.

Istanbul, July 3, 2018

Announcement Regarding the Capital Increase in Lifecell Ventures

The capital of our 100% owned subsidiary Lifecell Ventures Coöperatief U.A. (“Lifecell Ventures”) is increased by TRY 5,000,000 (EUR 930,354) to EUR 1,702,513,717. Our Company’s pre-emption rights with respect to the capital increase is fully paid.

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:  July 3, 2018	By:	/s/Zeynel Korhan Bilek
		Name:	Zeynel Korhan Bilek
		Title:	Investor Relations and Mergers & Acquisitions Director

	TURKCELL ILETISIM HIZMETLERI A.S.
Date:  July 3, 2018	By:	/s/Bulent Aksu
		Name:	Bulent Aksu
		Title:	Chief Financial Officer