Anastasius (Latinized) or Anastasios (Greek: Αναστάσιος, romanized: Anastasios) is a masculine given name of Greek origin derived from the Greek word ἀνάστασις (anastasis) meaning "resurrection".
Its female form is Anastasia (Greek: Αναστασία).
A diminutive form of Anastasios is Tassos (Greek: Τάσος).