6-K

FORM 6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Report of Foreign Private Issuer

Pursuant to Rule 13a-16 or 15d-16 under the

Securities Exchange Act of 1934

For the month of December 2012

Commission File Number 001-33548

JAGUAR MINING INC.

Rua Levindo Lopes 323 - Funcionários

CEP 30140-170 - Belo Horizonte – MG - Brazil

(31) 3232-7100

(Address of principal executive offices.)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-Fo Form 40-Fx

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): o

Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): o

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

EXHIBIT INDEX

Exhibit Number	Description of Exhibit
99.1	News Release Dated December 14, 2012 - Jaguar Mining to Appoint Douglas Willock as CFO Following the Resignation of James Roller

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, thereunto duly authorized.

	JAGUAR MINING INC.
Date: December 14, 2012	By:	/s/ James M. Roller
		Name: James M. Roller
		Title: Chief Financial Officer

EX-99.1

Exhibit 99.1

Jaguar Mining to Appoint Douglas Willock as CFO Following the Resignation of James Roller

JAG - TSX/NYSE

BELO HORIZONTE, Brazil, Dec. 14, 2012 /CNW/ - Jaguar Mining Inc. ("Jaguar" or "the Company") (TSX: JAG) (NYSE: JAG) today announced that Douglas Willock will be appointed as the Company's Chief Financial Officer in January 2013 following the resignation of James Roller who is leaving the Company to pursue other opportunities.  Mr. Willock, who was born in Brazil, has over 30 years of experience in corporate finance with leading Canadian and international investment banks, as well as managing junior resource companies. Most recently he served as President and Chief Executive Officer and as a Director of Polar Star Mining Corporation and is currently a Director and Chair of the Audit Committee for Orestone Mining Corp. Mr. Willock holds a Master of Business Administration degree with a major in finance from the Richard Ivey School of Business, Western University and a Bachelor of Arts (History) degree from the University of British Columbia. He attended the Beijing Language Institute on a joint Government of Canada and China scholarship from 1976 to 1977.

Commenting on Mr. Willock's appointment, David Petroff, Jaguar's President and CEO stated, "We are very pleased and fortunate to have Doug step in to fill this important role at this critical time for Jaguar.  In addition to his extensive knowledge, experience and relationships in corporate finance, Doug brings to the Company a 'can do' attitude and leadership style that I am certain will be highly valuable to our organization.  We welcome him to the Company and to the management team."

"We also want to express our thanks to Jim for his many valuable contributions to Jaguar," Petroff said.  "He has been a key member of the management team for many years and played an important role in the Company's growth and expansion.  His leadership and constancy will be missed. We wish Jim the very best in his future endeavors."

About Jaguar Mining

Jaguar is a junior gold producer in Brazil with operations in a prolific greenstone belt in the state of Minas Gerais and owns the Gurupi Project in Northern Brazil in the state of Maranhão. The Company also owns additional mineral resources at its approximate 210,000-hectare land base in Brazil. Additional information is available on the Company's website at www.jaguarmining.com.

SOURCE: Jaguar Mining Inc.

%CIK: 0001333849

For further information:

Contacts

Investors and Analysts:

Roger Hendriksen
Vice President, Investor Relations
603-410-4888
rhendriksen@jaguarmining.com

Media:

Valéria Rezende DioDato
Director of Communication
011-55-31-4042-1249
valeria@jaguarmining.com

CO: Jaguar Mining Inc.

CNW 09:10e 14-DEC-12