December 21, 2018 Christopher Carroll Senior Vice President. Controller and Chief Accounting Officer The Interpublic Group of Companies, Inc. 909 Third Avenue New York, NY 10022 Re: The Interpublic Group of Companies, Inc. Form 10-K for the Year Ended December 31, 2017 Filed February 26, 2018 File No. 001-06686 Dear Mr. Carroll: 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 Telecommunications