Nea Ionia (Greek: Νέα Ιωνία, meaning New Ionia) is a city and a former municipality in Magnesia, Thessaly, Greece.

Since the 2011 local government reform it is part of the municipality Volos, of which it is a municipal unit.

[2] It borders the city of Volos.

The population at the 2021 census was 31,884 inhabitants.

[3] The name "New Ionia" refers to refugees from western Anatolia that settled in the area after the Greco-Turkish War (1919-1922).