Argolis or Argolida is one of the regional units of Greece. It is part of the region of Peloponnese, situated in the eastern part of the Peloponnese peninsula and part of the tripoint area of Argolis, Arcadia and Corinthia. Much of the territory of this region is situated in the Argolid Peninsula.

The Peloponnese, Peloponnesus or Morea is a peninsula and geographic region in Southern Greece, and the southernmost region of the Balkans. It is connected to the central part of the country by the Isthmus of Corinth land bridge which separates the Gulf of Corinth from the Saronic Gulf. From the late Middle Ages until the 19th century, the peninsula was known as the Morea, a name still in colloquial use in its demotic form.