CNA Ex 23.1 123112

We consent to the incorporation by reference in Registration Statement No. 333-166058 on Form S-3 and Registration Statements No. 333-166360 and 333-129538 on Form S-8 of our report dated February 20, 2013, relating to the consolidated financial statements and financial statement schedules of CNA Financial Corporation and subsidiaries (the “Company”), and the effectiveness of the Company's internal control over financial reporting, appearing in this Annual Report on Form 10-K of the Company for the year ended December 31, 2012 (which report expresses an unqualified opinion and includes an explanatory paragraph concerning a change in accounting for costs associated with acquiring or renewing insurance contracts in 2012).