Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the inclusion in this Registration Statement on Form S-1 of our report dated April 2, 2020, except for Note 8, which is dated June 22, 2020, with respect to the audited financial statements of Greenwich LifeSciences, Inc. for the years ended December 31, 2019 and 2018. Our report contains an explanatory paragraph regarding the Company’s ability to continue as a going concern.

We also consent to the references to us under the heading “Experts” in such Registration Statement.