Domna’s name day is December 28, the feast of Domna of Nicomedia.
Churches that follow the Old (Julian) Calendar keep the same feast on January 10 of the civil calendar. See everything commemorated on December 28.
The saint behind the name
Domna of Nicomedia
December 28, Holy Woman, Δόμνα
The holy martyr Domna was a pagan priestess of the imperial palace at Nicomedia who came to faith in Christ through reading the Scriptures. Escaping the palace, she lived for a time in a monastery and among the Christians of the city, and after the burning of the church she was seized and beheaded.
Name days: Domna
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.