Anastasios \a-nasta-sios, an(as)-tasios\ as a boy's name is of Greek origin, and the meaning of Anastasios is "resurrection". From the word "anastasis". More common in the feminine version, Anastasia.

Anastasios has 18 variant forms: Anastas, Anastase, Anastagio, Anastasio, Anastasius, Anastatius, Anastice, Anastius, Anasto, Anastos, Anestis, Anstas, Anstasios, Anstasius, Anstice, Stasio, Stasius and Taso.

A baby name that sounds like Anastasios is Anstiss.