Aristides’s name day is September 13, the feast of Aristides the Philosopher.
Churches that follow the Old (Julian) Calendar keep the same feast on September 26 of the civil calendar. See everything commemorated on September 13.
The saint behind the name
Aristides the Philosopher
September 13, Martyr, Αριστείδης
St. Aristides was a philosopher of Athens in the second century who, after coming to faith in Christ, addressed a written defense of the Christians to the emperor Hadrian, and tradition relates a second to Antoninus Pius. His Apology, rediscovered in modern times, is among the earliest surviving defenses of the faith, setting Christian worship of the one Creator against the errors of the pagans and describing the pure life of the Christians.
Name days: Aristidis, Aristeidis, Aristides, Aris, Aristea
Also celebrating on September 13
These names share the feast, many of them other forms of the same name:
Aristidis, Aristeidis, Aris, Aristea
What to say on a name day
The Greek wish is Χρόνια Πολλά (Chronia Polla), “many years.” A call or a short message on the day is what people remember. See name day wishes you can send and what a name day is.