Meaning & Origin
A variant of Christie, a diminutive of Christina and related female names.
Kristy is a girl's and boy's baby name of Greek origin, a variant of Christie, a diminutive of Christina, from the Greek Christos, meaning 'anointed one.' The -y spelling was a popular American stylistic choice from the 1960s through 1980s.
Kristy carries the sunny, sporty energy of its era — think Kristy McNichol, the teen star of the late 1970s. It has a cheerful informality that makes it instantly likable, and the Kristy Thomas character in The Baby-Sitters Club gave it a lasting literary life in children's fiction.