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Exhibit 15.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-236331 and 333-240262 on Form F-3 of our report dated May 14, 2025, relating to the consolidated financial statements of Castor Maritime Inc. appearing in this Annual Report on Form 20-F for the year ended December 31, 2024.


/s/ Deloitte Certified Public Accountants S.A.
Athens, Greece
May 14, 2025