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                          May 18, 2021

       Todd R. Patrick
       Chief Executive Officer
       Armata Pharmaceuticals, Inc.
       4503 Glencoe Avenue
       Marina del Rey, California 90292-3552

                                                        Re: Armata
Pharmaceuticals, Inc.
                                                            Registration
Statement on Form S-3
                                                            Filed May 13, 2021
                                                            File No. 333-256104

       Dear Mr. Patrick:

              This is to advise you that we have not reviewed and will not
review your registration
       statement.

               Please refer to Rules 460 and 461 regarding requests for
acceleration. 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.

                                                        Please contact Margaret
Schwartz at 202-551-7153 with any questions.




                          Sincerely,


                          Division of Corporation Finance

                          Office of Life Sciences
       cc:                                              Faith Charles, Esq.