Káthy
given name · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
Káthy is a given name written in the Latin script, with more bearers in the United States than in any other country. In New Caledonia it is the 34th most common given name. Recorded meaning: Pet form of )Katherine and its variants.
- USUnited States1 in 1.2K(measured from records)
- GYGuyana1 in 12K
- ECEcuador1 in 13K
carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Sources
- 273 (measured from records)
- 1 in 1.2K (inferred from the name graph)
288,053 people, 2020
Highest-authority source
United States
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Kathy in US United States, NC New Caledonia.
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 variants.
Sources 3
- A concise dictionary of first names
- DUDEN Lexikon der Vornamen
- Nordic Names
Attested across 23 languages in the etymology graph.
Where in the world(measured from records)
Káthy 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 | — | 288,053 | 1 in 1.2K | 288K | Kathy | 171 |
| EC Ecuador | — | 1,313 | 1 in 13K | 1.3K | — | 5 |
| NL Netherlands | — | 435 | 1 in 40K | 435 | — | 7 |
| BR Brazil | — | 336 | 1 in 630K | 336 | — | — |
| SE Sweden | — | 191 | 1 in 53K | 191 | — | 3 |
| CR Costa Rica | — | 97 | 1 in 53K | 97 | — | — |
| GY Guyana | — | 63 | 1 in 12K | 63 | — | — |
| NC New Caledonia | #34 | — | — | — | Kathy | 6 |
288,053 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; INEC — civil registry names; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); IBGE — names by decade (Kaggle mirror); Skatteverket — Sök hur många som har ett visst namn (living population); TSE — electoral roll (padrón) names; Guyana — Official List of Electors July 2025. 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).
Evidence(measured from records)
No register attests this spelling yet
Frequently asked questions
- What does the name Káthy mean, and where does it come from?
- Pet form of )Katherine and its variants. Recorded by A concise dictionary of first names and DUDEN Lexikon der Vornamen and 1 other source.
- Is Káthy a male or female name?
- Káthy 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.
- In which country does Káthy have the most bearers?
- In the United States, the national register counted about 288 thousand people named Káthy, more than in any other country we hold, where it is most often spelled kathy.
- Where is Káthy most common?
- Káthy is densest in the United States, where the national register counts about 1 in 1.2 thousand people carrying it.
- How common is the name Káthy?
- In the United States, the national register counted 288,053 people named Káthy in 2020, about 1 in 1.2 thousand residents.
- How common is Káthy compared with other names?
- In New Caledonia, Káthy is the 34th most common given name of 870 given names recorded there.
What do you want to know about Káthy?
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/k%C3%A1thyThe 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), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.
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, “Káthy” — the 34th most common given name in New Caledonia. Data snapshot 2026-10-10.