Euroseas (ESEA) 20-F 2022 FY Annual report (foreign)

Exhibit 13.1

CHIEF EXECUTIVE OFFICER CERTIFICATION

PURSUANT TO 18 U.S.C. SECTION 1350

In connection with this Annual Report of Euroseas Ltd. (the “Company”) on Form 20-F for the year ended December 31, 2022 as filed with the Securities and Exchange Commission (the “SEC”) on or about the date hereof (the “Report”), I, Aristides J. Pittas, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

A signed original of this written statement has been provided to the Company and will be retained by the Company and furnished to the SEC or its staff upon request.

Date: April 28, 2023

/s/ Aristides J. Pittas    

Aristides J. Pittas

Chief Executive Officer