Exhibit 31.1


Certification of Chief Executive Officer of Greenwich LifeSciences, Inc.

Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002


I, Snehal Patel, certify that:


  1. I have reviewed this annual report on Form 10-K/A of Greenwich LifeSciences, Inc.;
  2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;


Date: June 24, 2022 /s/ Snehal Patel
  Snehal Patel
  Chief Executive Officer
  (Principal Executive Officer and Principal Accounting and Financial Officer)