Carterios’s name day is January 8, the feast of Carterios of Caesarea.
Churches that follow the Old (Julian) Calendar keep the same feast on January 21 of the civil calendar. See everything commemorated on January 8.
The saint behind the name
Carterios of Caesarea
January 8, Hierarch, Καρτέριος
St. Carterios was a priest of Caesarea in Cappadocia who instructed many in the faith and built a church for his flock. In the persecution under Diocletian he was arrested, tortured, and finally pierced with a spear.
Also celebrating on January 8
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.