United States securities and exchange commission logo September 10, 2021 Damian deGoa Chief Executive Officer Liquidia Corp 419 Davis Drive, Suite 100 Morrisville, North Carolina 27560 Re: Liquidia Corp Registration Statement on Form S-3 Filed September 2, 2021 File No. 333-259265 Dear Mr. deGoa: 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 Michael Davis at 202-551-4385 or Joe McCann at 202-551-6262 with any questions. Sincerely, Division of Corporation Finance Office of Life Sciences cc: Andrew P. Gilbert