Buffy is an English diminutive, traditionally of Elizabeth, used as an affectionate nickname rather than an original formal name.
Buffy began life as a nursery nickname — a small child's attempt to say 'Elizabeth' — and for most of the twentieth century it belonged to the comfortable world of country clubs and preppy yearbooks. Elizabeth, that great name of queens and saints, generates an extraordinary number of diminutives (Bess, Betty, Beth, Eliza, Libby, Lisa), and Buffy was among the most informal: breezy, a little silly, instantly suggesting a certain mid-century American affluence and blonde cheerfulness. It appeared on the 1960s television series Family Affair as the name of a gap-toothed child character, cementing its wholesome image.
Then, in 1992, screenwriter Joss Whedon deliberately chose the name for a very different purpose. Buffy Summers, the teenage vampire slayer of his film and then the landmark television series Buffy the Vampire Slayer (1997–2003), was named to create an immediate juxtaposition: the silliest possible name for the deadliest possible hero. The subversion was the point.
Buffy Summers became one of American television's most influential characters — feminist icon, postmodern heroine, cultural touchstone — and in doing so she transformed the name's associations entirely. Now Buffy carries connotations of hidden strength beneath an unassuming surface, of the ordinary concealing the extraordinary. The name thus occupies a fascinating dual legacy.
It can read as a retro charmer, evoking mid-century Americana, or as a knowing nod to one of the most beloved television heroines ever written. Parents choosing Buffy today are almost certainly doing the latter, selecting a name whose very lightness has become its superpower.