Libby
Meaning
diminutive of Elizabeth, traditionally 'God is my oath'
The formal names behind Libby
Libby is an established short form of this name.
Elizabeth · Hebrew origin · "God is my oath," from the Hebrew Elisheva; the great durable classic of English girl names, worn by two reigning queens and rarely out of the US top 30 in over a century of records. Its nickname wealth is unmatched: Liz, Beth, Eliza, Betsy, Libby
Libby around the world
One shared root links 26 names across 6 languages.
Shared root: from Hebrew Elisheva "God is my oath"; medieval Iberia split off Isabel, and the nursery split off nearly everything else
The constellation
19 more branches of this family
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Libby peaked in the 2000s and the 2020s in nearly equal measure.
The Libby deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Libby truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Libby fits with your family’s names and surname.
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