UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

FORM 8-K

CURRENT REPORT
PURSUANT TO SECTION 13 OR 15 (d) OF
THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported): June 16, 2005

MYLAN LABORATORIES INC.

1500 Corporate Drive
Canonsburg, PA 15317
(Address of principal executive offices)

(724) 514-1800
(Registrant’s telephone number, including area code)

     Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

     o   Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

     o   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

     o   Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2 (b))

     o   Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4 (c))

Table of Contents

Item 7.01. Regulation FD Disclosure.

     On June 16, 2005, Mylan Laboratories Inc. (the “Company”) commenced a modified “Dutch Auction” tender offer for approximately 48.8 million shares of its common stock. The offer to purchase shares will expire at 5:00 p.m., New York City time, on Friday, July 15, 2005, unless extended. A copy of the Company’s June 16, 2005 press release announcing the commencement is attached as Exhibit 99.1.

Item 9.01. Financial Statements and Exhibits.

     (c) Exhibits.

SIGNATURE

     Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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