Callista

Callista, also spelled as Calista, Callistee, Kallista, Kalista or Kallistee, comes from the Greek for "most beautiful (feminine)" (καλλίστη – kallístē).

As a name, it is derived from the Greek name of a huntress in the myth of Callisto, who was loved by Zeus. The name Callisto was changed to the common Callista for use as a name because in Latin Callista is the feminine form.