Lazar’s name day is October 17, the feast of Lazarus the Four-Days-Dead (Translation of Relics).
Churches that follow the Old (Julian) Calendar keep the same feast on October 30 of the civil calendar. See everything commemorated on October 17.
The saint behind the name
Lazarus the Four-Days-Dead (Translation of Relics)
October 17, Saint, Λάζαρος ο Τετραήμερος
After the Lord raised him from the dead, Lazarus fled the hatred of the Jews and came to Cyprus, where he was made Bishop of Kition and served for many years before his second death.
Also celebrating on October 17
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.