Libby
given name · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
Libby is a given name written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: from the medieval female personal name Libby, a pet form of Elizabeth or Isabel.
- AUAustralia≈1 in 6.7K(inferred from the name graph)
- GBUnited Kingdom≈1 in 15K
- USUnited States1 in 25K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- 2 (measured from records)
- Sources
- 428 (measured from records)
- ≈1 in 6.7K (inferred from the name graph)
13,353 people, 2020
recorded for this name
Highest-authority source
Australia, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin(measured from records)
from the medieval female personal name Libby, a pet form of Elizabeth or Isabel.
Sources 1
- Encyclopedia of surnames [the complete companion to tracing your names history]
Attested across 14 languages in the etymology graph.
Where in the world(measured from records)
Libby counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| US United States | — | 13,353 | 1 in 25K | 13K | Libby | 428 |
| GB United Kingdom | — | ≈4,400 est. | ≈1 in 15K | 14 | Libby | 211 |
| AU Australia | #779 | ≈3,800 est. | ≈1 in 6.7K | 5 | Libby | 165 |
| ID Indonesia | — | ≈2,000 est. | ≈1 in 134K | — | Libby | 36 |
| EG Egypt | — | ≈1,400 est. | ≈1 in 76K | — | Libby | 10 |
| NZ New Zealand | #655 | ≈450 est. | ≈1 in 11K | 12 | Libby | 99 |
| HK Hong Kong | — | ≈340 est. | ≈1 in 21K | — | Libby | 12 |
13,353 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.
Registers cited: Census Bureau — First Name Frequency 2020 by sex; Australian national given names (aggregated state BDM); NRS — Baby names Scotland full list (1974–present); DIA — Baby name popularity (1900–present). Figures without a register are Mondonomo estimates; see Methodology.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).
Other recorded senses(measured from records)
Libby is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In English, pet-names for Isabel; first attested John son of Libbe 1298 Wak (Yorkshire)
as a nameA Dictionary of English Surnames
In English, name, a pet form of Elizabeth', see Hires 2. . Liber see Lieb Libertini see Albert
as a nameThe Oxford Names Companion - The definitive guide to Surnames, First Names, and Place Names of the British Isles
from a pet form of the female personal names Elizabeth or Isabel.
as a nameDictionary of American Family Names
In English, name, a pet form of Elizabeth; see Hibbs 2.
as a nameA dictionary of surnames
In English, A diminutive of the female given name Elizabeth and Isabel.
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.
Notable people with this name(measured from records)
- Libby Morrisb. 1930CACanadian actress
- Libby Titusb. 1947USAmerican singer-songwriter
- Libby Gleesonb. 1950AUAustralian children's author (born 1950)
- Libby Patakib. 1950USFirst Lady of New York
- Libby Villarib. 1951USAmerican actress (born 1951)
- Libby Daviesb. 1953CACanadian politician
- Libby Riddlesb. 1956USAmerican dog musher
- Libby Tannerb. 1970AUAustralian television actor
- Libby Munrob. 1981AUAustralian screen and stage actress
- Libby Ludlowb. 1981USAmerican alpine skier
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
Evidence(measured from records)
Attested in 52 sources across 29 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 11K | #3,360 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 10K | #3,174 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 9.9K | #3,505 |
| GB United Kingdom | A Dictionary of Surnames (Hanks & Hodges, 1988) | — | — | — |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 4
- Dictionary of American Family Names
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikipedia given-name tokens
- Wikidata name items (native-script + romanized given/family names)
These works list the name; their figures are licensed and are not reproduced here.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What are other forms of the name Libby?
- In the etymology graph, Elizabeth, Lisa and Isabel are forms of the same name in other languages; Lillia is a recorded short or pet form; it is recorded as a short form of Izzy and Isbel.
- Is Libby a male or female name?
- Libby is a female name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- What does the name Libby mean, and where does it come from?
- from the medieval female personal name Libby, a pet form of Elizabeth or Isabel. Recorded by Encyclopedia of surnames [the complete companion to tracing your names history].
- In which country does Libby have the most bearers?
- In the United States, the national register counted about 13 thousand people named Libby, more than in any other country we hold, where it is most often spelled libby.
- How common is the name Libby?
- In the United States, the national register counted 13,353 people named Libby in 2020, about 1 in 25 thousand residents.
- How common is Libby compared with other names?
- In New Zealand, Libby is the 655th most common given name of 26,737 given names recorded there.
What do you want to know about Libby?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/libbyThe same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), and bulk access is licensed separately.
About this data
measured from records inferred from the name graph machine-generated
These figures come from the data snapshot of and will change as it is rebuilt.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Libby” — the 655th most common given name in New Zealand. Data snapshot 2026-10-10.