Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the use in this Registration Statement on Form F-1 of ObsEva SA of our report dated April 21, 2017 relating to the consolidated financial statements, which appears in such Registration Statement. We also consent to the reference to us under the heading “Experts” in such Registration Statement.

PricewaterhouseCoopers SA

/s/ Michael Foley	/s/ Corinne Pointet Chambettaz
Michael Foley	Corinne Pointet Chambettaz
Geneva, Switzerland
November 9, 2017

PricewaterhouseCoopers SA, avenue Giuseppe-Motta 50, Case postale, CH-1211 Genève 2, Switzerland

Telephone: +41 58 792 91 00, Facsimile: +41 58 792 91 10, www.pwc.ch

PricewaterhouseCoopers SA is a member of the global PricewaterhouseCoopers network of firms, each of which is a separate and independent legal entity.