United States securities and exchange commission logo March 16, 2021 F. Philip Snow Chief Executive Officer FactSet Research Systems Inc. 45 Glover Avenue Norwalk, Connecticut 06850 Re: FactSet Research Systems Inc. Form 10-K for the fiscal year ended August 31, 2020 File No. 001-11869 Dear Mr. Snow: 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