Associated Banc-Corp (ASB) 10-K 2014 FY Annual report

Exhibit 23

Consent of Independent Registered Public Accounting Firm

The Board of Directors

AssociatedBanc-Corp:

Re: Registration Statements onForm S-8

•    #2-77435	•    #333-121012
•    #2-99096	•    #333-121011
•    #33-16952	•    #333-121010
•    #33-24822	•    #333-120711
•    #33-35560	•    #333-120714
•    #33-54658	•    #333-120713
•    #33-63545	•    #333-120710
•    #33-67436	•    #333-120709
•    #33-86790	•    #333-166392
•    #333-46467	•    #333-188233
•    #333-74307

Re: Registration Statements onForm S-3

•    #2-98922	•    #33-63557
•    #33-28081	•    #33-67434

Re: Registration Statements onForm S-4

•    #333-105049

We consent to the incorporation by reference in the registration statements listed above on Forms S-8, S-3 and S-4 of Associated Banc-Corp of our reports dated February 5, 2015, with respect to the consolidated balance sheets of Associated Banc-Corp as of December 31, 2014 and 2013, and the related consolidated statements of income, comprehensive income, changes in stockholders’ equity and cash flows, for each of the years in the three-year period ended December 31, 2014, and the effectiveness of internal control over financial reporting as of December 31, 2014, which reports appear in the December 31, 2014 annual report on Form 10-K of Associated Banc-Corp.

/s/ KPMG LLP

Chicago, Illinois

February 5, 2015