variation of Ancient Greek Kallisto, derived from the word Kallistos, meaning 'most beautiful' .
In Italian, Swedish, Irish, Danish, and Russian, someone with this name is very powerful and they are strong-willed and tough.
Callisto, A character on Xena: Warrior Princess An x men character
Brief mention in true blood book series (not in tv show though)
Callisto, Ancient Greek nymph who was turned into a bear by Zeus. Makes the constellation UrsaMajor and is one of Jupiters moons.