Nike’s name day is April 25, the feast of Nike the Martyr.
Churches that follow the Old (Julian) Calendar keep the same feast on May 8 of the civil calendar. See everything commemorated on April 25.
The saint behind the name
Nike the Martyr
April 25, Holy Woman, Νίκη
Nike is listed in the Greek synaxaria as a martyr who gave her life for Christ. Little of her story has been preserved beyond her name and her witness.
Also celebrating on April 25
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.