For this Olga Dayana there are 3 different names on Yasni.
In the ranking of the most common first names Olga Dayana is on position 4588.
Female first name (Russian): Olga, holy, Old Norse (Word format); heilagr = holy, in Germany only in use since 1900
Female first name (German): Dayana, Latin (Roman mythology); deiwo = light, the light of day, the deity (Indo), in Roman mythology, Diana, the goddess of the hunt and the moon, the name goes back probably to an ancient Indo-European root, which also underlies 'Zeus'