The Hellenic Statistical Authority (Greek: Ελληνική Στατιστική Αρχή, IPA: [eliniˈci statistiˈci arˈçi]), mostly known by its acronym ELSTAT (Greek: ΕΛ.ΣΤΑΤ.), is an independent and autonomous authority in Greece that deals with the collection of data on behalf of the state. Prior to 2010, ELSTAT was a non-autonomous service of the Greek state known as the National Statistical Service of Greece (Greek: Εθνική Στατιστική Υπηρεσία).

The primary user of the Hellenic Statistical Authority is the Greek state. However, the Authority is also used by international organizations such as the European Commission (Eurostat) and others.

The Hellenic Statistical Authority collects data which concern population, employment and unemployment, tourism and the economy, industry, as well as data concerning health and social insurance, education and others. Prior to becoming an independent authority, ELSTAT was involved in a number of scandals involving false statistics regarding the condition of the Greek economy in recent years.

The Greek is a fictional character on the HBO drama The Wire, played by actor Bill Raymond. The Greek is the head of an international criminal organization involved in narcotics and human trafficking. The Greek is a mysterious figure involved in numerous criminal activities. His given name is never mentioned on the show, and though he is known only as "The Greek", he has stated (in the episode Port in a Storm) that he is not actually Greek. A quiet and unassuming man, the Greek prefers to keep a low profile, operating all of his business through his lieutenant Spiros "Vondas" Vondopoulos. His smuggling organization operated from a small diner in Baltimore for years, and while Vondas would conduct business the Greek would listen in quietly at the counter. Nick Sobotka, upon seeing the Greek identify himself, was amazed that the shadowy figure had been in plain sight the entire time.

Despite his calm appearance, the Greek is cunning and ruthless, and only interested in facts that make him more money. Series creator David Simon has said that The Greek is an embodiment of raw unencumbered capitalism. Anyone interfering in this process is eliminated immediately, and he prefers to leave victims headless and handless to hinder identification.