Elaionas (Greek: Ελαιώνας, pronounced [e.leˈo.nas], sometimes Anglicized as Eleonas) is a neighborhood in Central Athens, Greece.

The area was named for the fact that in antiquity it was covered in an abundance of olive trees, a feature that it retains even today but to a smaller extent.

The olive tree was a basic symbol of Athenian democracy as a prize for the winners of the Ancient Olympic Games.

By extension, its oil was a valuable commodity and the only Athenian product that was allowed to be exported and this gave impetus to the development of Elaionas.

During the Byzantine years, a large number of churches were built in the area, while the occupation of most of the inhabitants remained agricultural.