United States securities and exchange commission logo April 21, 2023 Sagi Niri Chief Financial Officer Tremor International Ltd. 82 Yigal Alon Street Tel Aviv, Israel, 6789124 Re: Tremor International Ltd. Form 20-F for the year ended December 31, 2022 Filed March 7, 2023 Form 6-K Submitted March 7, 2023 File No. 001-40504 Dear Sagi Niri: We have reviewed your April 19, 2023 response to our comment letter and have the following comment. In our comment, we may ask you to provide us with information so we may better understand your disclosure. Please respond to this comment within ten business days by providing the requested information or advise us as soon as possible when you will respond. If you do not believe our comment applies to your facts and circumstances, please tell us why in your response. After reviewing your response to this comment, we may have additional comments. Unless we note otherwise, our references to prior comments are to comments in our March 29, 2023 letter. Form 6-K Submitted March 7, 2023 General 1. Your response to prior comment 8 indicates that CTV spend and PMP spend represent sales in the Connected TV and private marketplace markets; however, you also note that they are non-GAAP measures that are derived from Contribution ex-TAC. As Contribution ex-TAC is a profit measure that is derived from GAAP gross profit it is unclear how "spend", a sales measure, is derived from Contribution ex-TAC. Please advise. Also, as previously requested, please provide us with your proposed disclosures. Sagi Niri FirstName LastNameSagi Tremor International Ltd. Niri Comapany April NameTremor International Ltd. 21, 2023 April 221, 2023 Page 2 Page FirstName LastName You may contact Christine Dietz, Senior Staff Accountant, at (202) 551-3408 if you have questions. Sincerely, Division of Corporation Finance Office of Technology cc: Amy Rothstein