Neos Kosmos (Greek: Νέος Κόσμος [ˈneos ˈkosmos] ⓘ; meaning "New World") is a neighborhood in Athens, Greece.

In classical antiquity, the area of Neos Kosmos may have been the location of the gymnasium Cynosarges.

Andrea Syngrou Avenue is one of the main roads of Neos Kosmos.

It is the warmest area of Downtown Athens with an average annual temperature of 20.2°C.

Thriamvos Athens, a multisport club founded in 1930, is based in Neos Kosmos.