UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

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): January 24, 2013

Coeur d’Alene Mines Corporation

(Exact name of registrant as specified in its charter)

505 Front Ave., P.O. Box “I”

Coeur d’Alene, Idaho, 83816

(Address of Principal Executive Offices)

(208) 667-3511

(Registrant’s telephone number, including area code)

N/A

(Former Name or Former Address, if Changed Since Last Report)

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 (see General Instructions A.2 below):

Notes Offering

On January 24, 2013, Coeur d’Alene Mines Corporation (the “Company” or “Coeur”) issued a press release (the “Launch Press Release”) announcing its intention to offer, subject to market and other conditions, $200 million aggregate principal amount of Senior Notes due 2021 (the “Notes”) in a transaction exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”). The Notes have not been registered under the Securities Act or any state securities laws and will not be offered or sold in the United States absent registration or an applicable exemption from the registration requirements of the Securities Act and applicable state laws. A copy of the Launch Press Release is attached hereto as Exhibit 99.1 and incorporated herein by reference.

On January 24, 2013, the Company issued a press release (the “Pricing Press Release”) announcing the pricing of an offering of $300 million aggregate principal amount of the Notes bearing an interest rate of 7.875%. The offering is expected to close on January 29, 2013, subject to certain closing conditions. A copy of the Pricing Press Release is attached hereto as Exhibit 99.2 and incorporated herein by reference.

Cautionary Note Regarding Forward-Looking Statements

The information contained in this Current Report on Form 8-K and the exhibits attached hereto contain forward-looking statements within the meaning of securities legislation in the United States and Canada, including, among others, (i) Coeur’s intention to offer its notes, subject to market and other conditions and (ii) Coeur’s intention to use the proceeds of the offering to fund internal and external growth initiatives and for general corporate purposes, which may include repurchasing 3.25% Convertible Senior Notes due 2028 that are put to Coeur at or after March 15, 2013.

Such forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause Coeur’s actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Such factors include, among others, the risks and hazards inherent in the mining business (including environmental hazards, industrial accidents, weather or geologically related conditions), changes in the market prices of gold and silver, the uncertainties inherent in Coeur’s production, exploratory and developmental activities, including risks relating to permitting and regulatory delays and disputed mining claims, any future labor disputes or work stoppages, the uncertainties inherent in the estimation of gold and silver ore reserves, changes that could result from Coeur’s future acquisition of new mining properties or businesses, reliance on third parties to operate certain mines where Coeur owns silver production and reserves, the loss of any third-party smelter to which Coeur markets silver and gold, the effects of environmental and other governmental regulations, the risks inherent in the ownership or operation of or investment in mining properties or businesses in foreign countries, Coeur’s ability to raise additional financing necessary to conduct its business, make payments or refinance its debt, as well as other uncertainties and risk factors set out in filings made from time to time with the United States Securities and Exchange Commission, and the Canadian securities regulators, including, without limitation, Coeur’s reports on Form 10-K and Form 10-Q. Actual results, developments and timetables could vary significantly from the estimates presented. Readers are cautioned not to put undue reliance on forward-looking statements. Coeur disclaims any intent or obligation to update publicly such forward-looking statements, whether as a result of new information, future events or otherwise. Additionally, Coeur undertakes no obligation to comment on analyses, expectations or statements made by third parties in respect of Coeur, its financial or operating results or its securities.

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.

Exhibit Index