Nea Kios (Greek: Νέα Κίος) is a small town and former municipality in Argolis, Peloponnese, Greece.

Nea Kios is situated in a plain on the coast of the Argolic Gulf, at the mouth of the rivers Inachos and Erasinos.

Refugees of Cius, after the Asia Minor disaster of 1922, transferred to Kalamaria where they stayed few years before most of them move out for Argolis when they were given space to settle.

Since its establishment, the actual population of Nea Kios according to ELSTAT is:[5] Since 1982 a museum operates in Nea Kios, named Laskarideio Folklore Museum, which houses costumes and various items from Cius of Asia Minor.

The name of the museum is a reference to Evristhenis Laskaridis, a doctor who published books on the history of Cius.