United States securities and exchange commission logo August 30, 2022 Mark K. Hardwick Chief Executive Officer FIRST MERCHANTS CORP 200 East Jackson Street Muncie, IN 47305-2814 Re: FIRST MERCHANTS CORP Form 10-K for the Fiscal Year Ended December 31, 2021 Filed March 1, 2022 Form 10-Q for the Quarter Ended June 30, 2022 Filed August 9, 2022 File No. 001-41342 Dear Mr. Hardwick: We have limited our review of your filings to the financial statements and related disclosures 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. Form 10-Q for the Period Ended June 30, 2022 Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations, page 36 1. We note your disclosure of the Non-GAAP indicators 'Adjusted Net Income Available to Common Stockholders' and 'Adjusted Diluted Earnings Per Share' on page 39. Please tell us, and revise future filings, to address the following: Provide all the disclosures in Item 10(e)(1)(i)(C) and (D) of Regulation S-K related to these non-GAAP indicators; and Consider including these two Non-GAAP indicators in the separate 'non-GAAP' section starting on page 51 that houses the rest of your non-GAAP disclosures included in the document. Mark K. Hardwick FIRST MERCHANTS CORP August 30, 2022 Page 2 In closing, 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. You may contact Bonnie Baynes at (202) 551-4924 or David Irving at (202) 551- 3321 with any questions. FirstName LastNameMark K. Hardwick Sincerely, Comapany NameFIRST MERCHANTS CORP Division of Corporation Finance August 30, 2022 Page 2 Office of Finance FirstName LastName