Modest’s name day is December 16, the feast of Modestos of Jerusalem.
Churches that follow the Old (Julian) Calendar keep the same feast on December 29 of the civil calendar. See everything commemorated on December 16.
The saint behind the name
Modestos of Jerusalem
December 16, Hierarch, Μόδεστος Ιεροσολύμων
Modestos was Archbishop of Jerusalem in the seventh century. After the Persians sacked the city and carried off the Holy Cross, he laboured to restore the ruined churches and monasteries of the Holy Land, and was formally made patriarch when the Cross was returned.
Also celebrating on December 16
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.