Arvanites (Greek: Αρβανίτες, Arvanitika: Arbëreshë or Αρbε̰ρεσ̈ε̰) are a population group in Greece who traditionally speak Arvanitika, a dialect of the Albanian language. They settled in Greece during the late Middle Ages and were the dominant population element of some regions of the Peloponnese and Attica until the 19th century. Arvanites today self-identify as Greeks as the result of a process of assimilation, and do not consider themselves to belong to Albania or the Albanian nation. They call themselves Arvanites (in Greek) and Arbëror (in their language); the communities in northern Greece also use the term Shqiptar (the same used by Albanians of Albania), a term strongly disliked by all the other Arvanites, who also resent being called Albanians. Arvanitika is in a state of attrition due to language shift towards Greek and large-scale internal migration to the cities and subsequent intermingling of the population during the 20th century.

Arvanites in Greece originated from Albanian settlers who moved south at different times between the 13th and 16th century from areas in what is today southern Albania.^{[page needed]} The reasons for this migration are not entirely clear and may be manifold. In many instances the Arvanites were invited by the Byzantine and Latin rulers of the time. They were employed to re-settle areas that had been largely depopulated through wars, epidemics, and other reasons, and they were employed as soldiers. Some later movements are also believed to have been motivated to evade Islamization after the Ottoman conquest. The main waves of migration into southern Greece started around 1300, reached a peak some time during the 14th century, and ended around 1600. Arvanites first reached Thessaly, then Attica, and finally the Peloponnese.

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.