The name Kassiani is a girl's name of Greek origin meaning "cinnamon". Kassiani and is often added to lists like Unique Girl Names: Unusual and Rare and discussed in our forums with posts like "If I had 8 daughters whose names started with...".
From the experts:
Kassiani, also spelled Kasiani or Cassiane, is an ancient Greek name best known as the name of a saint famous as a hymnographer. The Hymn of Kassiani, traditionally sung on Tuesday of Easter Week in the Greek Orthodox Church, is associated with fallen women. The 9th century saint Kassiani was supposed to be in love with the Emperor Theophilos, who rejected her when she proved to be more intelligent than he.
Virtually unknown in the U.S., Kassiani may well become more prominent along with the raft of similar names gaining new style currency, from the boys' names Cassian and Cassius to Cassia, Kasia and Keziah.