United States securities and exchange commission logo August 7, 2020 Jeff Church Chief Financial Officer Celsion Corporation 997 Lenox Drive, Suite 100 Lawrenceville, New Jersey 08648 Re: Celsion Corporation Registration Statement on Form S-3 Filed July 31, 2020 File No. 333-240271 Dear Mr. Church: This is to advise you that we have not reviewed and will not review your registration statement. Please refer to Rules 460 and 461 regarding requests for acceleration. 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. Please contact Margaret Schwartz at 202-551-7153 with any questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Steven Canner