

The followinglist of banks in Greece is to be understood within the framework of theEuropean single market andEuropean banking union, which means thatGreece's banking system is more open to cross-border banking operations than peers outside of the EU.
European banking supervision distinguishes betweensignificant institutions (SIs) andless significant institutions (LSIs), with SI/LSI designations updated regularly by theEuropean Central Bank (ECB). Significant institutions are directly supervised by the ECB using joint supervisory teams that involve thenational competent authorities (NCAs) of individual participating countries. Less significant institutions are supervised by the relevant NCA on a day-to-day basis, under the supervisory oversight of the ECB.[1] In Greece's case, the NCA is theBank of Greece.[2]
As of 1 September 2025, the list of supervised institutions maintained by the ECB included the following four Greek banking groups as SIs, with names as indicated by the ECB for each group's consolidating entity.[3]
Other euro-area-based banking groups also have operations in Greece, but a study published in 2024 suggests that their footprint in the country is much smaller than that of the four major Greek banks.[4]: 27–29 All such cases are via branches, none via subsidiaries.[3]
As of 1 September 2025, the ECB's list of supervised institutions included ten Greek LSIs, of which the following three were designated by the ECB as "high-impact" on the basis of several criteria including size:[3]
The other seven Greek LSIs were:
As of 13 October 2025, there were two branches of banks established outside theEuropean Economic Area ("third-country branches" in EU parlance) in Greece:[5]
TheBank of Greece andHellenic Development Bank [el] are public credit institutions that do not hold a banking license under EU law. TheGreek Deposits and Loans Fund [el] is also specifically exempted from the scope of application of the EUCapital Requirements Directives.[6]
A number of former Greek banks, defined as having been headquartered in the present-day territory of Greece, are documented on Wikipedia. They are listed below in chronological order of establishment. Multiple Greek banks came to an end in 2013 as a consequence of theGreek government-debt crisis.