Ermione’s name day is September 4, the feast of Hermione the Daughter of Philip.
Churches that follow the Old (Julian) Calendar keep the same feast on September 17 of the civil calendar. See everything commemorated on September 4.
The saint behind the name
Hermione the Daughter of Philip
September 4, Holy Woman, Ερμιόνη
St. Hermione was one of the four daughters of the Apostle Philip the Deacon, who are named in the Acts of the Apostles as virgins who prophesied. Tradition relates that she settled in Ephesus, practiced the art of healing, and cared freely for the sick and the poor.
Also celebrating on September 4
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.