Katy

loc · Latin script

Recorded as a female name· opposite-gender records fall within measured source noise

Katy is a name written in the Latin script, with more bearers in China than in any other country. Recorded meaning: : Pet form of Katherine and its many variants.

rarermore common
  • GBUnited Kingdom≈1 in 867as Katie(inferred from the name graph)
  • AUAustralia≈1 in 1Kas Katie
  • IEIreland≈1 in 1.1Kas Katie

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Katy itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

China (inferred from the name graph)

≈350,000 named Katie, est.

#619 (measured from records)

of 15M given names

6 (measured from records)

recorded for this name

Sources
606 (measured from records)

Highest-authority source

≈1 in 9.4K (inferred from the name graph)

France, est.

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

KatieLatin(measured from records)
קייטיHebrew(measured from records)
เคทThai(measured from records)
케이티Hangul(measured from records)
ՔեթիArmenian(measured from records)
ΚειτιGreek(measured from records)

Locally spelled Katie in US United States, GB United Kingdom, AU Australia and 2 more and Kätÿ in EC Ecuador.

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)

: Pet form of Katherine and its many variants.

Sources 1

  • A concise dictionary of first names

Attested across 17 languages in the etymology graph.

Where in the world(measured from records)

Katy 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.

Where Katy is recorded, by country
CountryMost common spellingSources
CN China—≈350,000 est.≈1 in 4K—Katy53
US United States#272215,039as Katie1 in 1.5K215KKatie606
GB United Kingdom#156≈76,000 est.≈1 in 86736Katie356
AU Australia#198≈25,000 est.≈1 in 1K93Katie265
CA Canada#290≈20,000 est.≈1 in 1.8K9Katie281
EC Ecuador—12,251as Katty1 in 1.4K12KKätÿ28
FR France—≈7,300 est.≈1 in 9.4K6.6K—13
IE Ireland#133≈4,900 est.≈1 in 1.1K204Katie145
LV Latvia—1,560as Kate1 in 1.2K1.6K—11

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; NISRA — Baby names Northern Ireland full list (1997–present); NSW BDM — Popular baby names (1952–present); Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender; INEC — civil registry names; CSO — Irish Babies Names (1998–present); INSEE — Fichier des prénoms (1900–2024); PMLP — Personu vārdi (given names in population register); PMLP — Personvārdu meklētājs (per-name population-register lookup). 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 names spelled this way(inferred from the name graph)

Katy is also recorded as 7 other names, grouped separately because the records behind them do not connect to the one described above.

  • Spanish given name27 spellings in the group

    Most recorded in Mexico, United States, Colombia, Brazil

    Languages: Spanish, Portuguese

    Also written Käty, Kâty, Kätÿ, Kãty, Kátý

  • a separate name2 spellings in the group

    Also written Káty

  • Polish given name66 spellings in the group

    Most recorded in United States, Poland, Czechia, United Kingdom

    Languages: Polish, Russian, Czech

    Also written Kathy, Katie, Cathy, Kathie, Кэти

  • Malay name4 spellings in the group

    Most recorded in Malaysia

    Also written Káty, Kâty

  • Serbian given name11 spellings in the group

    Most recorded in United States, United Kingdom, Canada

    Languages: Serbian, Macedonian

    Also written Katie, Kejti, Кејти

  • a separate name4 spellings in the group

    Also written Käty, Kăty

  • a separate name4 spellings in the group

    Most recorded in Mali, United States, Finland, Poland

    Also written Kãty, Kàty, Kãtý

47 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Other recorded senses(measured from records)

Katy 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, A diminutive of the female given name Katherine, variant of Katie.

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In English, city, TX; pers. name

    as a namePronouncing Dictionary of Proper Names

  • In Polish, nominative/accusative/vocative plural of kat

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In Czech, accusative/instrumental plural of kat

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In kdr, solid, hard

    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)

19201940196019802000Katy Bødtger, b. 1932Katy Manning, b. 1946Katy Karrenbauer, b. 1962Katy Kurtzman, b. 1965Katy Steding, b. 1967Lara Fabian, b. 1970Katy Brand, b. 1979Katy Wix, b. 1980Katy Mixon, b. 1981Katy O'Brian, b. 1989

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 75 sources across 42 countries.

Official registers attesting Katy
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex202023K#1,460
FR FranceINSEE — Fichier des prénoms (1900–2024)20186.6K#2,939
EC EcuadorINEC — civil registry names20242K#609
US United StatesSSA — National Baby Names (1880–present)202564—
US United StatesCensus Bureau — First Name Frequency 2020 by sex202039#1,460
EC EcuadorINEC — Visualizador de Nombres y Apellidos, per-token query API (1900–2024)20247—
CA CanadaStatistics Canada — First names at birth by sex at birth (Table 17-10-0147-01)20215—
GB United KingdomNISRA — Baby names Northern Ireland full list (1997–present)20195#298
US United StatesSSA — National Baby Names (1880–present)19805—
AU AustraliaAustralian national given names (aggregated state BDM)19954—
GB United KingdomNRS — Baby names Scotland full list (1974–present)20233#749
CA CanadaAlberta Open Government — Frequency and Ranking of Baby Names by Year and Gender20241#2,418

Reference works 3

  • Nişanyan Adlar (Turkish given-name national-registry frequency)
  • 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 does the name Katy mean, and where does it come from?
: Pet form of Katherine and its many variants. Recorded by A concise dictionary of first names.
How common is the name Katy?
In the United States, the national register counted 215,039 people named Katie in 2020, about 1 in 1.5 thousand residents.
How common is Katy compared with other names?
In Ireland, Katy is the 133rd most common given name of 14,976 given names recorded there.
In which country does Katy have the most bearers?
Mondonomo estimates about 345 thousand people named Katie in China, more than in any other country we hold.

What do you want to know about Katy?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

Please leave out anyone's personal details (see Privacy).

Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/katy

The 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, “Katy” — the 133rd most common given name in Ireland. Data snapshot 2026-10-10.

See how Katy parses inside a full name →