Willy

given name · French · Latin script

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

Willy is a given name, with more bearers in the United States than in any other country. In Bolivia it is the 31st most common given name. It appears chiefly in French and Spanish, written in the Latin script. Recorded meaning: Pet form of ) William.

rarermore common
  • USUnited States1 in 1.9K
  • BOBolivia1 in 2.4K
  • PEPeru1 in 3.6K

carrying the name, one hue, darker where it is more common. Hover a country for its figure.

≈210K

across 12 countries

2

recorded for this name

Sources
240

120K records

Official registry-verified

1 in 969

Finland

Spellings & scripts

WillyLatin · Spanish124K records
빌리Hangul · Korean0 records

One other spelling is counted as the same name:

Locally spelled Billy in KR South Korea.

Spellings marked ● are how people bearing the name write it in our records; ○ marks a model's transliteration. Click a spelling to open its page.

Meaning & origin

Pet form of ) William. Wilma ° Contracted form of Wilhelmina, which has retained rather more currency (especially in America) than the full form of the name.

Sources 1

  • A concise dictionary of first names

Attested across 16 languages in the etymology graph.

Where in the world

Sorted by bearers counted by national registers, records where none counts.

Where Willy is recorded, by country
CountryMost common spellingSources
US United States171,41916K rec.1 in 1.9K171KWilly240
PE Peru#48362,80150K rec.Willy76
FR France18,6600 rec.1 in 3.6K19K3
VE Venezuela14,9355.9K rec.Willy43
PH Philippines13,3459.5K rec.Willy48
FI Finland5,74918 rec.1 in 9695.9KWilly7
AR Argentina5,7283.3K rec.2Willy54
MX Mexico4,7734.6K rec.5Willy87
CL Chile4,016989 rec.4Willy55
CO Colombia#9043,9552.3K rec.Willy75
SE Sweden3,87677 rec.1 in 2.6K3.9KWilly14
BR Brazil3,7945.6K rec.1 in 56K3.8KWilly104

Roughly 171K people in United States bear this name (about 1 in 1.9K). Estimates project the name's share of our records onto national population, so each is only as good as the record base beside it — the Basis column gives that base; rows marked rest on fewer records than the estimate itself and are order-of-magnitude at best.

Country figures for a list of names, at full precision, are available under licence rather than by scraping this table. How that works.

Languages

  • French130K21%
  • Spanish124K20%
  • English91K15%
  • Portuguese67K11%
  • German45K7%
Show as table
Languages in which the name is recorded
NameRecordsNote
French129,80921%
Spanish124,33920%
English91,47615%
Portuguese67,37111%
German45,0287%

Language is read off each record's context, not declared by the bearer; a share is of all records for this spelling.

Other names spelled this way

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

  • English given name164K records spelled Willy15 spellings in the group

    Most recorded in United States, Netherlands, Venezuela, Philippines

    Languages: English, Dutch, Western Frisian

    Also written Wîllÿ, Wïllÿ, Wîlly, Wílly, Wīllÿ

  • French given name140K records spelled Willy17 spellings in the group

    Most recorded in France, Belgium, Philippines, United States

    Languages: French, Catalan

    Also written Wïllÿ, Wïlly, Wìllÿ, Wîllÿ, Wîlly

  • German given name57K records spelled Willy7 spellings in the group

    Most recorded in Germany, United States, Switzerland, Netherlands

    Also written Wiĺĺy, Wīļlý, Wïlly

  • Indonesian given name27K records spelled Willy3 spellings in the group

    Most recorded in Indonesia, Philippines, United States, Malaysia

    Languages: Indonesian, Malay

    Also written 'Willy

  • Norwegian Bokmål given name19K records spelled Willy7 spellings in the group

    Most recorded in Norway, Denmark, United States, Sweden

    Languages: Norwegian Bokmål, Danish, Norwegian

    Also written Wîlly, Wïllÿ

  • Polish given name4.6K records spelled Willy5 spellings in the group

    Most recorded in United States, Peru, Poland, Netherlands

    Languages: Polish, Czech, Slovak

    Also written Wïĺlý, Wìllÿ

  • a separate given name3.0K records spelled Willy13 spellings in the group

    Most recorded in Norway, United States, Peru, Algeria

    Also written Wïllÿ, Wîllÿ, Wïlly, Wīllÿ, Wįlly

67 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

Willy 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 German, a diminutive of the male given names Wilhelm or Wilfried, also diminutive of other Germanic compound names beginning with Wil-

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

  • In English, Willing; favourable; ready; eager.

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

  • In German, Kurzform mit Kosesuffix -īn zu Wilhelm; 162 Belege.

    as a nameDeutscher Familiennamenatlas, Band 6: Familiennamen aus Rufnamen

  • In Swedish, Willy är ursprungligen en smekform till → William (→ Vilhelm). Willy förekom i äldre tid även som kvinnonamn i Sverige, då som en smekform till → Vilhelmina. En känd fiktiv namnbärare är Willy Wonka i Roald Dahls barnbok Kalle och chokladfabriken (1964, filmatiserad 1971 och 2005).

    as a nameFörnamn i Sverige. Kortfattat namnlexikon

  • In German, männl. Vom., Schreibvariante von

    as a nameDUDEN Lexikon der Vornamen

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.

Over time

02040608019001950200069 · 1993

Show as table
Willy in SSA — National Baby Names (1880–present), United States, 1884–2025
Yearrecords
18845
18967
19025
19068
19088
19106
19117
191210
19136
191412
191516
191611
191716
191813
191918
192024
192114
192217
192317
192420
192520
192621
192718
192823
192922
193028
193126
193219
193323
193424
193524
193625
193728
193822
193924
194027
194128
194224
194333
194431
194529
194622
194727
194839
194922
195028
195132
195220
195332
195430
195526
195629
195739
195843
195947
196052
196152
196257
196346
196440
196547
196632
196726
196840
196928
197033
197129
197229
197348
197440
197532
197636
197740
197856
197936
198034
198143
198239
198331
198437
198542
198638
198747
198837
198935
199063
199158
199249
199369
199464
199548
199647
199741
199841
199955
200049
200159
200246
200349
200448
200548
200647
200749
200860
200948
201044
201141
201244
201338
201435
201530
201626
201726
201839
201929
202038
202130
202231
202320
202424
202527

US SSA — National Baby Names (1880–present)121 years between 1884–2025. One register's own figures, never a sum across registers: two registers counting the same people would double them.

Notable people with this name

1850190019502000Willy Hess, b. 1859Willy Hameister, b. 1889Willy Brand, b. 1913Fernande Fazzi, b. 1927Willy Kurant, b. 1934Leif G. W. Persson, b. 1945William Russell, b. 1947Willy van de Kerkhof, b. 1951Willy Sagnol, b. 1977Willy Caballero, b. 1981

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

Attested in 93 sources across 53 countries.

Official registers attesting Willy
CountryRegisterYearCountRank
FR FranceINSEE — Fichier des prénoms (1900–2024)202419K#3,105
US United StatesCensus Bureau — First Name Frequency 2020 by sex20207.7K#2,853
NL NetherlandsMeertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017)7.2K#511
NO NorwaySSB — Navnesøk (name-search service, living population)6.8K#536
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)3.9K#715
BR BrazilIBGE — names by decade (Kaggle mirror)20223.8K
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)3.7K#3,313
BR BrazilIBGE — Nomes (census name API)3.2K#4,423
NO NorwaySSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891)20252.1K
NL NetherlandsMeertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017)1.8K#1,465
EC EcuadorINEC — civil registry names20241.5K#569
SE SwedenSCB — Namnstatistik (to 2023)20201.1K

Reference works 5

  • The Oxford Dictionary of Family Names in Britain and Ireland
  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • 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 2026-09-12 data build · 1,027 rows in the corpus for this spelling.

Frequently asked questions

How common is the name Willy?
We estimate roughly 210 thousand people bear Willy (counting its spellings and scripts) across 12 countries in our records.
In which country does Willy have the most bearers?
We estimate about 171 thousand people bear Willy in the United States, more than in any other country in our records, where it is most often spelled willy.
Where is Willy most common?
Measured as a share of residents rather than as a count, Willy is densest in Finland — about 1 in 969 people — even though United States holds more of our records for it.
How common is Willy compared with other names?
In Bolivia, Willy is the 31st most common given name of 14,901 given names recorded there.
Is Willy a male or female name?
Willy is a male 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.
What does the name Willy mean?
Recorded meaning: Pet form of ) William.
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/willy

The same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use. Bulk access and licensing.

About this data

measured from records inferred from the name graph machine-generated

Data snapshot . Figures are rebuilt periodically and will change.

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, “Willy” — the 31st most common given name in Bolivia. Data snapshot 2026-09-12.

See how Willy parses inside a full name →