Theophylact’s name day is March 8, the feast of Theophylaktos of Nicomedia.
Churches that follow the Old (Julian) Calendar keep the same feast on March 21 of the civil calendar. See everything commemorated on March 8.
The saint behind the name
Theophylaktos of Nicomedia
March 8, Hierarch, Θεοφύλακτος
St. Theophylaktos was a monk and disciple of St. Tarasios, Patriarch of Constantinople, who made him Bishop of Nicomedia in the late eighth century. There he built churches and hospices, cared for the poor and the sick with his own hands, and governed his flock with great charity.
Name days: Theofylaktos, Theophylaktos, Theophylact, Theofilaktos
Also celebrating on March 8
These names share the feast, many of them other forms of the same name:
Theofylaktos, Theophylaktos, Theofilaktos
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.