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                          November 17, 2021

       David Renas
       Chief Financial Officer
       ObsEva SA
       Chemin des Aulx, 12
       1228 Plan-les-Ouates
       Geneva, Switzerland

                                                        Re: ObsEva SA
                                                            Registration
Statement on Form F-1
                                                            Filed November 10,
2021
                                                            File No. 333-260974

       Dear Mr. Renas:

              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 Joe
McCann at (202) 551-6262 with any questions.




                          Sincerely,


                          Division of Corporation Finance

                          Office of Life Sciences
       cc:                                              Ryan Sansom, Esq.