Willo

given name · Latin script

Meaning: from the stem Wild-; also used as an independent short form

Recorded for both men and women· direction only, no split published

/wɪɫoʊ/(machine-generated) pronunciation, model-generated

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

rarermore common
  • GYGuyana1 in 375K(measured from records)
  • NLNetherlands1 in 494K
  • USUnited States1 in 924K

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)

360 people, 2020

Sources
75 (measured from records)

Highest-authority source

1 in 375K (inferred from the name graph)

Guyana

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin(measured from records)

from the stem Wild-; also used as an independent short form

Sources 1

  • Deutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung

Where in the world(measured from records)

Willo 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 Willo is recorded, by country
CountryMost common spellingSources
US United States3601 in 924K310Willo14
NL Netherlands351 in 494K35——
BR Brazil351 in 6M35——
SE Sweden81 in 1.3M8——
DK Denmark41 in 1.5M4——
GY Guyana21 in 375K2——

360 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; 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); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); 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).

Other names spelled this way(inferred from the name graph)

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

  • a separate name3 spellings in the group

    Also written Willö

36 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)

Willo is also recorded in 4 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In German, Patronymisch zu ahd. willo / altsächs. willio 'Wille'; Rufname Willo.

    as a nameDeutscher Familiennamenatlas, Band 6: Familiennamen aus Rufnamen

  • In German, short form of names in Willi-/Wil-

    as a nameDeutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung

  • In Polish, vocative singular of willa

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

  • In goh, will, wish, desire

    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)

190019502000Willo Welzenbach, b. 1900Willo Davis Roberts, b. 1928Willo Gonnissen, b. 1959Willo McDonagh, b. 1983

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).

How to address them(machine-generated)

InformalHi Willo,

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)

Attested in 18 sources across 11 countries.

Reference works 2

  • 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 Willo mean, and where does it come from?
from the stem Wild-; also used as an independent short form Recorded by Deutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung.
How do you pronounce Willo?
A machine transcription gives /wɪɫoʊ/ (IPA) for English.
Is Willo a male or female name?
Willo is recorded for both men and women. We don't publish a percentage split: a record's gender belongs to the person and is attached to every given name on that record, so names in cultures where a name string also carries a parent's or spouse's given name pick up large cross-gender counts.
In which country does Willo have the most bearers?
In the United States, the national register counted about 360 people named Willo, more than in any other country we hold, where it is most often spelled willo.
Where is Willo most common?
Measured as a share of residents rather than as a count, Willo is densest in Guyana — about 1 in 375 thousand people — even though United States holds more of our records for it.
How common is the name Willo?
In the United States, the national register counted 360 people named Willo in 2020, about 1 in 924 thousand residents.

What do you want to know about Willo?

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

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

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, “Willo”. Data snapshot 2026-10-10.

See how Willo parses inside a full name →