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                              August 12, 2020

       Petros Panagiotidis
       Chairman, Chief Executive Officer and Chief Financial Officer
       Castor Maritime Inc.
       223 Christodoulou Chatzipavlou Street
       Hawaii Royal Gardens
       3036 Limassol, Cyprus

                                                        Re: Castor Maritime
Inc.
                                                            Registration
Statement on Form F-3
                                                            Filed July 31, 2020
                                                            File No. 333-240262

       Dear Mr. Panagiotidis:

              We have limited our review of your registration statement to
those issues we have
       addressed in our comments. In some of our comments, we may ask you to
provide us with
       information so we may better understand your disclosure.

              Please respond to this letter by amending your registration
statement and providing the
       requested information. If you do not believe our comments apply to your
facts and
       circumstances or do not believe an amendment is appropriate, please tell
us why in your
       response.

              After reviewing any amendment to your registration statement and
the information you
       provide in response to these comments, we may have additional comments.

       Registration Statement on Form F-3

       General

   1.                                                   We note that you relied
on General Instruction I.B.5 to Form F-3 to conduct your
                                                        registered direct
offering in July 2020, and note that in a concurrent private placement you
                                                        sold to the investors
the warrants that you are registering for resale in this F-3. Because
                                                        the aggregate number of
shares sold by you to the selling shareholders in the registered
                                                        direct offering and
number of common shares underlying the warrants sold by you in the
                                                        private placement
exceeds the limitation in General Instruction I.B.5, it does not appear
                                                        that you are eligible
to rely on General Instruction I.B.3 to Form F-3 to register the resale
                                                        of these securities.
For guidance, please consider Securities Act Forms Compliance and
                                                        Disclosure
Interpretation 116.25. Accordingly, with respect to the resale of these
warrants
 Petros Panagiotidis
Castor Maritime Inc.
August 12, 2020
Page 2
      and common shares, please amend your registration statement to a form on
which you are
      eligible to conduct a primary offering of securities with a market value
of the securities
      that you have attempted to register on Form F-3. Alternatively, provide
us with an
      analysis supporting your eligibility to use Form F-3 to register the
resale of these warrants
      and common shares.
        We remind you that the company and its management are responsible for
the accuracy
and adequacy of their disclosures, notwithstanding any review, comments, action
or absence of
action by the staff.

       Refer to Rules 460 and 461 regarding requests for acceleration. Please
allow adequate
time for us to review any amendment prior to the requested effective date of
the registration
statement.

      Please contact Laura Nicholson, Special Counsel, at 202-551-3584 or Loan
Lauren
Nguyen, Legal Branch Chief, at 202-551-3642 with any questions.



                                                            Sincerely,
FirstName LastNamePetros Panagiotidis
                                                            Division of
Corporation Finance
Comapany NameCastor Maritime Inc.
                                                            Office of Energy &
Transportation
August 12, 2020 Page 2
cc:       Edward S. Horton
FirstName LastName