Phoevi’s name day is September 3, the feast of Phoebe the Deaconess.
Churches that follow the Old (Julian) Calendar keep the same feast on September 16 of the civil calendar. See everything commemorated on September 3.
The saint behind the name
Phoebe the Deaconess
September 3, Holy Woman, Φοίβη
St. Phoebe was a deaconess of the Church at Cenchreae, the eastern port of Corinth, in the first century. The Apostle Paul commends her in his Epistle to the Romans as a servant of the Church and a helper of many, including himself, and tradition holds that she carried that epistle to Rome.
Also celebrating on September 3
These names share the feast, many of them other forms of the same name:
Phoebe, Phoebi, Foivi, Fivi, Phivi, Fevi
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.