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                          October 15, 2020

       Judy Matthews
       Chief Financial Officer
       Iterum Therapeutics plc
       Block 2 Floor 3, Harcourt Centre
       Harcourt Street
       Dublin 2
       Ireland

                                                        Re: Iterum Therapeutics
plc
                                                            Registration
Statement on Form S-1
                                                            Filed October 9,
2020
                                                            File No. 333-249432

       Dear Ms. Matthews:

              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:                                              Brian Johnson