United States securities and exchange commission logo January 11, 2022 Jes s Llorca Chief Financial Officer SEACOR Marine Holdings Inc. 12121 Wickchester Lane Suite 500 Houston, TX 77079 Re: SEACOR Marine Holdings Inc. Form 10-K for the Fiscal Year Ended December 31, 2020 Filed March 12, 2021 File No. 001-37966 Dear Mr. Llorca: We have completed our review of your filing. 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. Sincerely, Division of Corporation Finance Office of Energy & Transportation