Nikonas’s name day is November 26, the feast of Nikon Metanoeite.
Churches that follow the Old (Julian) Calendar keep the same feast on December 9 of the civil calendar. See everything commemorated on November 26.
The saint behind the name
Nikon Metanoeite
November 26, Venerable, Νίκων ο Μετανοείτε
Saint Nikon was born in Pontus in the tenth century and became a monk. He travelled through Asia Minor, Crete after its recovery from the Arabs, and the Peloponnese, preaching everywhere the single word Metanoeite, Repent, from which he took his name.
Also celebrating on November 26
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.