Joshua’s name day is September 1, the feast of Joshua the Son of Nun.
Churches that follow the Old (Julian) Calendar keep the same feast on September 14 of the civil calendar. See everything commemorated on September 1.
The saint behind the name
Joshua the Son of Nun
September 1, Saint, Ιησούς του Ναυή
The righteous Joshua, son of Nun, was the servant and successor of the Prophet Moses. He was one of the twelve spies sent into Canaan and, with Caleb, alone trusted that God would give the land to His people. After the death of Moses he led Israel across the Jordan, took Jericho, and divided the land among the tribes.
Name days: Joshua
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.