Athanasios 'Thanos' Kalliris (Greek: Θάνος Καλλίρης, born August 13, 1962) is a Greek singer who was born in Athens.

His father was a guitarist and composer, Titos Kalliris (1934–2013).

In the 1980s, he was a part of the pop music band Bang alongside Vassilis Dertilis.

In the 1990s, he wrote and sung pop songs and ballads, making a successful solo career for himself.

His last album has the title "Gia hari sou boro" (For you I can) in which he has collaborated with several artists, among them with Vassilios Pallis, a talented composer.