Ball (BALL) 10-K 2004 FY Annual report

Exhibit 23

Consent of Independent Registered Public Accounting Firm

We hereby consent to the incorporation by reference in each Amendment No. 1 to the Registration Statements on Form S-3 to Form S-16 (Registration Nos. 2-62247 and 2-65638) and in each Registration Statement on Form S-3 (Registration Nos. 33-3027, 33-16674, 33-19035, 33-40196 and 33-58741) and in each Registration Statement on Form S-8 (Registration Nos. 33-21506, 33-40199, 33-37548, 33-28064, 33-15639, 33-61986, 33-51121, 333-26361, 333-32393, 333-84561, 333-52862, 333-62550, 333-67180 and 333-67284) of Ball Corporation of our report dated February 22, 2005, relating to the financial statements, management’s assessment of the effectiveness of internal control over financial reporting and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

Denver, Colorado
February 22, 2005