UNITED STATES ~~SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549~~

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

March 24 27, 2017

COMMISSION ~~Commission~~FILE ~~File~~NO. ~~Number~~ 1 - 10421

LUXOTTICA GROUP S.p.A.

Piazzale Cadorna 3, MILAN, 20123 ITALY
(Address of principal executive office)

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 ý x Form 40-F o 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): o 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): o Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes o No x If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-

~~Indicate~~On byMarch 27, ~~check~~2017, ~~mark~~Luxottica ifGroup S.p.A. (the ~~registrant~~“Company”) isposted ~~submitting~~to its website a press release and related documents disclosing excerpts of certain provisions of the ~~Form 6-K~~agreement inbetween ~~paper~~Essilor asInternational ~~permitted~~and ~~by Regulation~~ Delfin S-T.à ~~Rule~~r.l. previously communicated to the public on January ~~101(b)(~~16, 2017. Copies of the press release and related documents are included as Exhibits 99.1~~): o~~ and 99.2 hereto, respectively.

~~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): o~~ 2

Indicate by check mark whether by furnishing the information contained in this Form, the registrant is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes o No ý

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

EXHIBIT INDEX

Exhibit Number			Exhibit
	15.1		Notice of Ordinary Meeting of Stockholders for Luxottica Group S.p.A.'s Meeting of Stockholders to be held on April 28, 2017.
	15.2		Voting Instruction Card for use by holders of American Depositary Shares in connection with Luxottica Group S.p.A.'s Ordinary Meeting of Stockholders to be held on April 28, 2017.

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.

LUXOTTICA GROUP S.p.A. Date: March 24, 2017 By: /s/ MICHAEL A. BOXER MICHAEL A. BOXER Group General Counsel

	LUXOTTICA GROUP S.p.A.


	By:	/s/ MICHAEL A. BOXER
Date: March 27, 2017		MICHAEL A. BOXER
		Group General Counsel

~~QuickLinks~~3

Exhibit Index

Exhibit 99.1 Press Release of the Company dated March 27, 2017.

Exhibit 99.2 Key Information Document dated March 27, 2017.

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