Aristarchos’s name day is September 27, the feast of Mark, Aristarchos and Zenon the Apostles.
Churches that follow the Old (Julian) Calendar keep the same feast on October 10 of the civil calendar. See everything commemorated on September 27.
The saint behind the name
Mark, Aristarchos and Zenon the Apostles
September 27, Apostle, Μάρκος, Αρίσταρχος και Ζήνων
St. Mark, called also John, is the kinsman of Barnabas named in the Acts and the Epistles; St. Aristarchos was the Apostle Paul's fellow prisoner and, tradition holds, bishop of Apamea in Syria; St. Zenon is the lawyer whom Paul commends to Titus, and is said to have been bishop of Diospolis.
Name days: Aristarchos, Aristarchus
Also celebrating on September 27
These names share the feast, many of them other forms of the same name:
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.