Meaning:
Its source is Katarina, a Scandinavian name meaning "Pure."
Popularity:
The name Reena ranked 3775th in popularity for females of all ages in a sample of the 1990 US Census.
Though this name appears on the 1990 U.S. Census lists, it is used by only a small percentage of the general population.
Narrative:
This evolved as a short form of a number of other names as well, including Sabrina and Marina.
In Hebrew, it means 'joy' or 'song.'