Cencora (COR) 10-K 2016 FY Annual report

Exhibit 23

Consent of Independent Registered Public Accounting Firm

         We consent to the incorporation by reference in the Registration Statements Nos. 333-102090, 333-105743, and 333-208191 on Form S-3, Nos. 333-88230, 333-86012, 333-101042, 333-101043, 333-110431, 333-140470, 333-159924, 333-173982, and 333-194325 on Form S-8 and No. 333-61440 on Form S-4/S-8 of AmerisourceBergen Corporation of our reports dated November 22, 2016, with respect to the consolidated financial statements and schedule of AmerisourceBergen Corporation and subsidiaries and the effectiveness of internal control over financial reporting of AmerisourceBergen Corporation and subsidiaries, included in this Annual Report (Form 10-K) for the year ended September 30, 2016.

/s/ Ernst & Young LLP

Philadelphia, Pennsylvania

November 22, 2016