FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16

OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of July 2026

Commission File Number: 001-32458

DIANA SHIPPING INC.

(Translation of registrant's name into English)

Pendelis 16, 175 64 Palaio Faliro, Athens, Greece

(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 [X] Form 40-F [ ]

INFORMATION CONTAINED IN THIS FORM 6-K REPORT

Attached to this Report on Form 6-K as Exhibit 99.1 is a press release dated July 13, 2026, of Diana Shipping Inc. (the "Company"), announcing that its tender offer to acquire all outstanding shares of Genco not already owned by Diana has been extended to July 24, 2026, at 5:00 p.m., New York City time.

The information contained in this Report on Form 6-K, excluding the commentary from Semiramis Paliou, Chief Executive Officer of the Company, is hereby incorporated by reference into the Company's registration statements on Form F-3 (File Nos. 333-266999 and 333-280693) that were filed with the U.S. Securities and Exchange Commission and became effective on September 16, 2022, and September 9, 2024, respectively.

SIGNATURES

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.

ATTACHMENTS / EXHIBITS

p15030818-exh99_1.htm