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 19, 2012

StoneMor Partners L.P.

(Exact name of registrant as specified in its charter)

311 Veterans Highway, Suite B, Levittown, PA 19056

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code (215) 826-2800

Not Applicable

(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:

On January 19, 2012, StoneMor Partners L.P. (the “Partnership”) entered into the Third Amended and Restated Credit Agreement (the “Credit Agreement”) among StoneMor Operating LLC as a Borrower (the “Operating Company”), each of the subsidiaries of the Operating Company as additional Borrowers (together with the Operating Company, the “Borrowers”), StoneMor GP LLC, the general partner of the Partnership, and the Partnership, as Guarantors, the Lenders identified therein, and Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer.

The summary of the material terms of the Credit Agreement and the Confirmation Agreement, as defined below, is set forth below. Capitalized terms which are not defined in the following description shall have the meaning assigned to such terms in the Credit Agreement.

The Credit Agreement replaced the Partnership’s Second Amended and Restated Credit Agreement, dated April 29, 2011, as amended (the “Prior Credit Agreement”). The terms of the Credit Agreement and the Prior Credit Agreement are substantially similar, and amendments to the Prior Credit Agreement mostly relate to the following:

Generally, interest rates on the Credit Facility are calculated as follows:

The Eurodollar Rate was reduced by eliminating the LIBOR Floor of 2% per annum from the calculation of the Eurodollar Rate. In addition, the range of the Applicable Rate determined based on the Consolidated Leverage Ratio of the Partnership and its Subsidiaries was reduced to 2.25% — 3.75% (previously, 2.75% — 3.75%) for Eurodollar Rate Loans and Letter of Credit Fees, and 1.25% — 2.75% (previously, 1.75% — 2.75%) for Base Rate Loans. The current Applicable Rate for each of (i) Eurodollar Rate Loans and Letter of Credit Fees is 3.25%, and (ii) Base Rate Loans is 2.25%, based on the current Consolidated Leverage Ratio.

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Under the Credit Agreement, certain financial covenants were amended as follows:

The Credit Agreement includes the post-closing borrowing limit of $50 million prior to the delivery of certain appraisals, which are in process, and modifications to certain Mortgages, which have been deferred to a later date. After the delivery of those appraisals, but prior to the delivery of the modifications to certain Mortgages, the post-closing borrowing limit is $100 million.

The proceeds of the Credit Facility may be used by the Borrowers to finance working capital requirements, Permitted Acquisitions, Capital Expenditures and for other general corporate purposes. The Borrowers’ obligations under the Credit Agreement are guaranteed by both the Partnership and StoneMor GP LLC.

In addition, on January 19, 2012, the Borrowers, the Guarantors and Bank of America, N.A., as Collateral Agent, entered into the Confirmation and Amendment Agreement (the “Confirmation Agreement”). Pursuant to the Confirmation Agreement, the parties (i) acknowledged that the Amended and Restated Security Agreement, dated April 29, 2011 (the “Security Agreement”), and the Amended and Restated Pledge Agreement, dated April 29, 2011 (the “Pledge Agreement”), entered into in connection with the Prior Credit Agreement, and the Mortgages (Mortgages, together with the Security Agreement and the Pledge Agreement, the “Security Documents”) continued in full force and effect and related to the obligations of the Borrowers and Guarantors under the Credit Agreement; and (ii) made certain technical amendments to the Security Documents to conform them to the Credit Agreement. Subject to limited exceptions, pursuant to the Security Agreement and the Pledge Agreement, the Borrowers’ obligations under the Credit Facility are secured by a first priority lien and security interest in substantially all of the Borrowers’ assets, whether then owned or thereafter acquired.

The Credit Agreement and the Confirmation Agreement also include various representations, warranties and covenants and indemnification provisions, as applicable, customary for transactions of this nature.

The Lenders and their respective affiliates have acted as lenders under the Prior Credit Agreement and engaged in, and may in the future engage in, investment banking and other commercial dealings with the Partnership and its affiliates for which they have received, and will receive, customary fees and expenses.

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The foregoing summary of the Credit Agreement and the Confirmation Agreement is not complete and is qualified in its entirety by reference to these agreements, copies of which are filed as Exhibits 10.1 and 10.2 hereto and are incorporated by reference herein.

On January 19, 2012, the Partnership entered into the Credit Agreement that replaced the Prior Credit Agreement, as described in Item 1.01 above, which description is incorporated in its entirety by reference herein.

On January 19, 2012, the Partnership entered into the Credit Agreement. The terms of the Credit Agreement are described in Item 1.01 above, which description is incorporated in its entirety by reference herein.

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SIGNATURES

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.

Date: January 24, 2012

EXHIBIT INDEX