The name Callista is of Greek origin and means "most beautiful" or "most beautiful one." It is often associated with someone who exudes grace, charm, and elegance. People with the name Callista are said to possess a natural magnetism and beauty that draws others to them. They are seen as sophisticated and refined individuals who have a strong sense of self and confidence. Overall, Callista is a name that conveys a sense of beauty, poise, and allure.