United States securities and exchange commission logo February 15, 2023 Christopher Cage Chief Financial Officer Leidos Holdings, Inc. 1750 Presidents Street Reston, Virginia 20190 Re: Leidos Holdings, Inc. Form 10-K for the Fiscal Year Ended December 31, 2021 Filed February 15, 2022 File No. 001-33072 Dear Christopher Cage: 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 Technology cc: Jerry Howe, Esq.