Euonymeia (, Evonímia), also known by its medieval name Trachones , and by its modern colloquial Ano Kalamaki (, Upper Kalamaki), is a historic settlement in Attica and currently a residential neighborhood within the municipality of Alimos on the southern suburbs of Athens, Greece. The area is an inland part of the south Athenian plain, situated between the foothills of Mount Hymettus and the southern coastal zone of Athens on the Saronic Gulf. The land is characterized by limestone hills and streams running from Hymettus toward the coast. Situated south of the center of Athens, Euonymeia has been developed and incorporated into the urban sprawl of the Greek capital.
The area displays some of the earliest urban settlements in Europe, with archeological sites showing continuous development from the Neolithic and Bronze Age periods. Major archeological finds include Early Helladic fortifications, Mycenaean era workshops and necropolis, a classical era amphitheater, and Paleochristian and Byzantine temples. Some of the earliest and best preserved specimens of Athenian Geometric pottery have been attributed to the Trachones workshop and are featured in museum collections, including two kraters on display at the Metropolitan Museum of Art in New York City.
At its peak during the 5th and 4th centuries BCE, the area was the center of the Deme of Euonymos, one of the most populous communities of Ancient Athens. Euonymos had its own acropolis, theater, industrial installations, and religious festivals. Several Euonymeians played a major role in Athenian politics and civic life, most notably in the trial of Socrates and in the expeditions of the Peloponnesian War.