Hesychius’s name day is May 10, the feast of Hesychios of Antioch.
Churches that follow the Old (Julian) Calendar keep the same feast on May 23 of the civil calendar. See everything commemorated on May 10.
The saint behind the name
Hesychios of Antioch
May 10, Martyr, Ησύχιος ο Ομολογητής
Hesychios was a high-ranking official in Antioch in the reign of Maximian Galerius. When Christians were ordered to leave the imperial service, he willingly laid aside his rank, and when he refused to sacrifice he was thrown into the river Orontes with a millstone about his neck.
Also celebrating on May 10
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.