Katielyn
given name · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
Katielyn is a given name written in the Latin script, with more bearers in the United States than in any other country.
- GYGuyana1 in 750K(measured from records)
- USUnited States≈1 in 7.3M
- CACanada≈1 in 14M
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 (inferred from the name graph)
- Sources
- 80 (measured from records)
- 1 in 750K (inferred from the name graph)
≈46 people, est.
Highest-authority source
Guyana
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Katie-Lyn in CA Canada.
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
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Where in the world(measured from records)
Katielyn 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 | ≈46 est. | ≈1 in 7.3M | 5 | Katielyn | 80 |
| GB United Kingdom | ≈4 est. | ≈1 in 16M | listed | Katielyn | 3 |
| CA Canada | ≈3 est. | ≈1 in 14M | — | Katie-Lyn | 4 |
| AU Australia | ≈2 est. | ≈1 in 14M | — | Katielyn | 1 |
| GY Guyana | 1 | 1 in 750K | 1 | — | 1 |
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: SSA — National Baby Names (1880–present); 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)
Attested in 2 sources across 2 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | SSA — National Baby Names (1880–present) | 1997 | 9 | — |
| US United States | SSA — National Baby Names (1880–present) | 2010 | 6 | — |
| US United States | SSA — National Baby Names (1880–present) | 2008 | 6 | — |
| US United States | SSA — National Baby Names (1880–present) | 1994 | 6 | — |
| US United States | SSA — National Baby Names (1880–present) | 1990 | 6 | — |
| US United States | SSA — National Baby Names (1880–present) | 1988 | 6 | — |
| US United States | SSA — National Baby Names (1880–present) | 2013 | 5 | — |
| US United States | SSA — National Baby Names (1880–present) | 1986 | 5 | — |
| GY Guyana | Guyana — Official List of Electors July 2025 | 2025 | 1 | #593 |
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Is Katielyn a male or female name?
- Katielyn 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 Katielyn have the most bearers?
- Mondonomo estimates about 46 people named Katielyn in the United States, more than in any other country we hold, where it is most often spelled katielyn.
- Where is Katielyn most common?
- Measured as a share of residents rather than as a count, Katielyn is densest in Guyana — about 1 in 750 thousand people — even though United States holds more of our records for it.
- How common is the name Katielyn?
- In Guyana, the national register counted 1 people named Katielyn in 2025, about 1 in 750 thousand residents.
What do you want to know about Katielyn?
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/katielynThe 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, “Katielyn”. Data snapshot 2026-10-10.