Athanasios 'Thanos' Kalliris (Greek: T???? ?a??????, born 13 August 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.
He was also involved in the 1987 Eurovision Song Contest.
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.