Andriana’s name day is November 30, the feast of Andrew the First-Called.
Churches that follow the Old (Julian) Calendar keep the same feast on December 13 of the civil calendar. See everything commemorated on November 30.
The saint behind the name

Andrew the First-Called
November 30, Great Feast, Ανδρέας ο Πρωτόκλητος
St. Andrew, the First-Called of the Apostles, was a fisherman of Bethsaida and first a disciple of St. John the Forerunner. When the Baptist pointed to Jesus as the Lamb of God, Andrew followed Him at once and brought his brother Simon Peter to the Lord. After Pentecost, according to tradition, he preached the Gospel around the Black Sea and in Greece, and was martyred at Patras on a cross in the form of an X.
Name days: Andreas, Andis, Andrew, Andrea, Andrei, Andre, Andres, Andy, Andriana, Andrianna
Also celebrating on November 30
These names share the feast, many of them other forms of the same name:
Andreas, Andis, Andrew, Andrea, Andrei, Andre, Andres, Andy, Andrianna
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.