Exhibit 23

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the registration statements of Legg Mason, Inc. on Form S-8 (File Nos. 2-87754; 33-20027; 33-28609; 33-45453; 33-48239; 33-55814; 33-61441; 33-61445; 333-08721; 333-45307; 333-59841; 333-61163; 333-66891; 333-86863; 333-86869; 333-53102; 333-53104; 333-72904; 333-102502; 333-102503; 333-103468; 333-103472; 333-104955; 333-118761; and 333-126788) and on Form S-3 (File Nos. 333-00151; 333-33298; 333-34674; 333-68922; 333-91888; 333-100156; 333-123272; 333-130621; and 333-132074) of our report dated June 9, 2006 relating to the consolidated 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/ PricewaterhouseCooopers LLP

Baltimore, Maryland

June 9, 2006