Buffy (given name)
Buffy  or Buffie is a pet form of the female given name Elizabeth that is also in use as an independent name. It originated from a small child's lisping attempts to pronounce Elizabeth. Usage
The name ranked among the top 1,000 names for newborn American girls between 1967 and 1977. Its popularity coincided with the 1966 to 1971 air dates of the American television series Family Affair, in which child actress Anissa Jones played a character named Buffy. The name later became associated with the character Buffy Summers on the 1990s American television series Buffy the Vampire Slayer. The name is still in occasional use. Seven American girls were given the name in 2022. People
 Buffy Tyler (born 1978), Playboy playmate
 Buffy Wicks (born 1977), California State Assemblymember

Notes

Feminine given names
Given names inspired by popular culture
Hypocorisms