Exhibit 23
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the Registration Statements No. 333-86664 and No. 333-05151 on Form S-8 of First Financial Bancorp of our report dated June 20, 2019 appearing in this Annual Report on Form 11-K of the First Financial Bancorp 401(k) Savings Plan for the year ended December 31, 2018.
/s/ Crowe LLP
South Bend, Indiana
June 20, 2019