Form NT 20-F NATIONAL BANK OF GREECE For: Dec 31

** There is no CUSIP number assigned to the ordinary shares. CUSIP number 633643408 has been assigned to the American Depositary Receipts of National Bank of Greece S.A., which are traded over the counter under the symbol NBGGY.

If the notification relates to a portion of the filing checked above, identify the Item(s) to which the notification relates:

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PART I — REGISTRANT INFORMATION

PART II — RULES 12b-25(b) AND (c)

If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25(b), the following should be completed. (Check box if appropriate)

PART III — NARRATIVE

State below in reasonable detail why Forms 10-K, 20-F, 11-K, 10-Q, 10-D, N-SAR, N-CSR, or the transition report or portion thereof, could not be filed within the prescribed time period.

National Bank of Greece S.A. (the “Company” and together with its consolidated subsidiaries, the “Group”) is unable to file, without unreasonable effort and expense, its annual report on Form 20-F for the financial year ended December 31, 2015 within the prescribed time period for the reasons described below.

As previously disclosed, on November 3, 2015, the Company’s Board of Directors approved a plan to proceed with the disposal of the Company’s entire stake in Finansbank A.S. (the “Transaction”). On December 21, 2015, the Company’s Board of Directors approved the divestiture to Qatar National Bank (“QNB”) of the Group’s 99.81% stake in Finansbank A.S. together with NBG’s 29.87% stake in Finans Leasing (together, the “Turkish Operations”). Furthermore, on January 18, 2016, the Extraordinary General Meeting of the Bank approved the Transaction.

Closing of the Transaction is subject to the approval from: (i) the Turkish Banking Regulation and Supervision Agency (already received); (ii) the Qatar Central Bank (already received); (iii) the Turkish Competition Board; (iv) the Turkish Capital Markets Board and (v) the Turkish Treasury.

As a result of the complex nature of the Transaction, the Company needs additional time to finalize the presentation of its U.S. GAAP financial statements for the financial year ended December 31, 2015 and to complete its review of its annual report on Form 20-F following the disposal of the Turkish Operations.

PART IV — OTHER INFORMATION

The Group’s net loss attributable to NBG shareholders for the year ended December 31, 2015 is expected to be materially greater than the respective net loss of €2,477 million for the year ended December 31, 2014. The increase is mainly attributable to the following:

·      Increased loan impairments as a result of further deterioration in the economic conditions underlying the Bank’s assumptions used as inputs in both the collective and the individual impairment assessment models of its loan portfolios at the reporting date.

·      Impairment losses recognised on the reclassification of Finansbank. Following the Bank’s decision to dispose its entire shareholding in Finansbank on November 3, 2015, and its classification as a discontinued operation, the Group measured the assets and liabilities of Finansbank at the lower of carrying value or fair value less cost to sell. The carrying amount of the Group’s investment in Finansbank, subject to impairment measurement as at December 31, 2015, included a cumulative translation adjustment expected to be approximately €2.9 billion.

As a result of these substantial losses, the Group’s permanent equity is expected to be negative as of December 31, 2015.

(Name of Registrant as Specified in Charter)

has caused this notification to be signed on its behalf by the undersigned hereunto duly authorized.

INSTRUCTION: The form may be signed by an executive officer of the registrant or by any other duly authorized representative. The name and title of the person signing the form shall be typed or printed beneath the signature. If the statement is signed on behalf of the registrant by an authorized representative (other than an executive officer), evidence of the representative’s authority to sign on behalf of the registrant shall be filed with the form.