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Exhibit 15.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the following Registration Statements:

(1)
Registration Statement (Form F-3 No. 333-166697) of Seanergy Maritime Holdings Corp.,
(2)
Registration Statement (Form F-3 No. 333-169813) of Seanergy Maritime Holdings Corp.,
(3)
Registration Statement (Form F-3 No. 333-214967) of Seanergy Maritime Holdings Corp.,
(4)
Registration Statement (Form F-3 No. 333-221058) of Seanergy Maritime Holdings Corp., and
(5)
Registration Statement (Form F-3 No. 333-226796) of Seanergy Maritime Holdings Corp.;

of our report dated March 5, 2020, with respect to the consolidated financial statements and the financial statement schedule of Seanergy Maritime Holdings Corp. included in this Annual Report (Form 20-F) of Seanergy Maritime Holdings Corp. for the year ended December 31, 2019.

/s/ Ernst & Young (Hellas) Certified Auditors Accountants S.A.

Athens, Greece
March 5, 2020