Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in this Registration StatementNo. 333-223557 on FormS-3 of our reports dated February 11, 2020, relating to the consolidated financial statements of Diamond Offshore Drilling, Inc. and the effectiveness of Diamond Offshore Drilling, Inc.’s internal control over financial reporting, appearing in the Annual Report on Form10-K of Diamond Offshore Drilling, Inc. for the year ended December 31, 2019. We also consent to the reference to us under the heading “Experts” in such Registration Statement.
/s/ DELOITTE & TOUCHE LLP
Houston, Texas
February 11, 2020