EX-23.1 4 c87684exv23w1.txt CONSENT EXHIBIT 23.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated February 23, 2004 relating to the financial statements, which appears in Old National Bancorp's Annual Report on Form 10-K for the year ended December 31, 2003. We also consent to the reference to us under the heading "Experts" in such Registration Statement. Chicago, Illinois August 19, 2004