Lillyan

given name · Latin script

Meaning: A female given name from Latin, a less common spelling of Lilian

A female name· listed as female by the registers that count names by sex

(measured from records)Officially recorded in 11 countries · latest register: SSA, 2025

/liljɐ̃/(machine-generated) Portuguese · model-generated

Say it in

Lillyan is a female given name written in the Latin script, with more bearers in the United States than in any other country.

  • USUnited States1 in 194K(measured from records)
  • BRBrazil1 in 989K
  • NLNetherlands1 in 1M

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

1,713 people, 2020

Record sources
47 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 194K (inferred from the name graph)

United States

measured from records inferred from the name graph

Meaning & origin

(measured from records)

A female given name from Latin, a less common spelling of Lilian.

Cited for this meaning 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested in 1 language in the etymology graph.

Where in the world

(measured from records)

Lillyan 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 Lillyan is recorded, by country
CountryMost common spellingSources
US United States1,7131 in 194K1.7KLillyan47
BR Brazil2141 in 989K214Lillyan44
MX Mexico≈62 est.≈1 in 2.1M—Lillyan26
CO Colombia≈35 est.≈1 in 1.5M—Lillyan10
NI Nicaragua≈32 est.≈1 in 219K—Lillyan6
NL Netherlands171 in 1M17—1
UY Uruguay≈3 est.≈1 in 1M1Lillyan2

1,713 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; IBGE — names by decade (Kaggle mirror); Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); Montevideo Open Data — Nombres por año y sexo (1940–2012). 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)

Lillyan is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • a separate name2 spellings in the group

    Also written Líllyan

32 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.

How to address them

(machine-generated)
InformalHi Lillyan,

A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.

Evidence

(measured from records)

20 registers and reference works attest this spelling, across 11 countries.

Official registers attesting Lillyan
CountryRegisterYearCountRank
US United StatesCensus Bureau — First Name Frequency 2020 by sex20201.7K#8,466
BR BrazilIBGE — names by decade (Kaggle mirror)2022214—
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—214#24,231
US United StatesSSA — National Baby Names (1880–present)2009193—
US United StatesSSA — National Baby Names (1880–present)2010172—
US United StatesSSA — National Baby Names (1880–present)2012166—
BR BrazilIBGE — names by decade (Kaggle mirror)2010165—
US United StatesSSA — National Baby Names (1880–present)2011160—
US United StatesSSA — National Baby Names (1880–present)2007144—
US United StatesSSA — National Baby Names (1880–present)2008142—
US United StatesSSA — National Baby Names (1880–present)2006132—
US United StatesSSA — National Baby Names (1880–present)2013127—

Register rows as of the 2026-10-09 data build.

Frequently asked questions

What does the name Lillyan mean, and where does it come from?
A female given name from Latin, a less common spelling of Lilian. Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
What are other forms of the name Lillyan?
In the etymology graph, Lillian and Lilian are forms of the same name in other languages.
How do you pronounce Lillyan?
It depends on the language: in Portuguese /liljɐ̃/; in Spanish /liʎʝan/. Transcriptions are machine-generated except where a dictionary is named.
Is Lillyan a male or female name?
Lillyan is a female name. National registers that list it by sex list it as female: United States (Census Bureau, 2020) and Brazil (IBGE, 2022).
In which country does Lillyan have the most bearers?
In the United States, the national register counted about 1.7 thousand people named Lillyan, more than in any other country we hold, where it is most often spelled lillyan.
Where is Lillyan most common?
Lillyan is densest in the United States, where the national register counts about 1 in 194 thousand people carrying it.
How common is the name Lillyan?
In the United States, the national register counted 1,713 people named Lillyan in 2020, about 1 in 194 thousand residents.

What do you want to know about Lillyan?

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

The 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, “Lillyan”. Data snapshot 2026-10-13.

See how Lillyan parses inside a full name →