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Willian

Boys’ name Recorded 1880-2025

Willian was given to 20 boys in 2025, #5,032 among boys’ names; 4,092 Americans have been recorded with it since 1880 (Social Security Administration, published May 2026).

An estimated 2,050 Americans named Willian and born in the U.S. are alive in 2026 (50% of everyone recorded); the median is 52 years old and half are between 23 and 69.

Babies named Willian each year, first recorded in 1880
Willian, 1880-2025; highest in 1929.20406080100188019001920194019601980200020251929 peak: 84
Willian, 1880-2025; highest in 1929.20406080100188019001920194019601980200020251929 peak: 84
Willian, 1880-2025; highest in 1929.2040608010018801905193019551980200520251929 peak: 84
Willian, 1880-2025; highest in 1929.2040608010018801930198020251929 peak: 84

Girls and boys together; gaps are years SSA did not record (fewer than 5 births).

Births of Willian by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.

What does Willian mean?

Wiktionary, English section

Willian is “a male given name.”

From Wiktionary, the free dictionary, entry Willian (English), CC BY‑SA 4.0. Quoted from the entry; text after a cross-reference to another sense is left out.

Meaning: Wiktionary, English section, as of Sep 25, 2026 (CC BY‑SA 4.0).

How popular is Willian?

#5,032 among boys’ names, 2025

Willian fell from #4,700 in 2015 to #5,032 in 2025 among boys’ names, although its share of boys born rose from 11.0 to 11.7 per million.

84 babies in 1929, the peak

Willian peaked in 1929, when 84 boys were given it, #674 among boys’ names. The 20 births of 2025 are 24% of that peak.

Willian by year
YearBirthsRankPer 1,000 boys
202520#5,0320.01
202416#5,8790.01
202320#5,0500.01
202217#5,6140.01
202117#5,5430.01
202013#6,5980.01
201918#5,3270.01
201827#3,9820.01
201716#5,7690.01
201622#4,6130.01
Every recorded year (137)
YearBirthsRankPer 1,000 boys
201521#4,7000.01
201419#5,0510.01
201323#4,3050.01
201223#4,3780.01
201138#3,0420.02
201036#3,1790.02
200930#3,6300.02
200825#4,1330.01
200722#4,4820.01
200627#3,7750.01
200531#3,3110.02
200420#4,4050.01
200325#3,6180.01
200221#4,0330.01
200117#4,6590.01
200014#5,2830.01
199913#5,3020.01
199818#4,0070.01
19979#6,589under 0.01
199615#4,3840.01
199512#5,1090.01
199412#5,0950.01
199313#4,6810.01
199210#5,6390.01
199118#3,4460.01
199018#3,4540.01
198914#4,0080.01
198822#2,6730.01
198713#3,7170.01
198624#2,3560.01
198527#2,1130.01
198423#2,2880.01
198326#2,0820.01
198217#2,8280.01
198127#2,0340.02
198032#1,8070.02
197920#2,4630.01
197821#2,2760.01
197724#2,0620.01
197615#2,8220.01
197520#2,2850.01
197425#1,8850.02
197323#1,9260.01
197222#1,9630.01
197130#1,6330.02
197040#1,3350.02
196947#1,1510.03
196842#1,1820.02
196737#1,2500.02
196636#1,2800.02
196527#1,5110.01
196450#1,0810.03
196348#1,1190.02
196253#1,0540.03
196138#1,3000.02
196038#1,2920.02
195937#1,3000.02
195840#1,2350.02
195744#1,1830.02
195654#1,0290.03
195541#1,1790.02
195438#1,2240.02
195337#1,2430.02
195243#1,1340.02
195138#1,1930.02
195043#1,0840.02
194931#1,3200.02
194850#9990.03
194741#1,1460.02
194648#9780.03
194568#7480.05
194458#8310.04
194374#7630.05
194259#8580.04
194166#7690.05
194060#8090.05
193961#7820.06
193850#8960.05
193744#9560.04
193650#8720.05
193553#8710.05
193456#8440.05
193347#9250.05
193248#9510.05
193177#6870.07
193074#7430.07
192984#6740.08
192862#8450.06
192764#8480.06
192679#7210.07
192560#8700.05
192458#9240.05
192351#9750.05
192251#9980.05
192144#1,0680.04
192044#1,0720.04
191931#1,2950.03
191833#1,2290.03
191724#1,4770.03
191631#1,2050.03
191529#1,2400.03
191418#1,4880.03
191312#1,6730.02
19129#1,8810.02
19117#1,5290.03
19078#1,0890.05
19055#1,4180.04
19045#1,3900.04
19025#1,3120.04
19006#1,3020.04
18996#1,0460.06
18975#1,2220.04
18946#1,0690.05
18937#9030.06
18925#1,2510.04
18915#1,1220.05
189012#6010.11
18898#7870.07
18887#9150.06
18879#6780.09
188611#6030.10
18855#1,0930.05
188410#6610.09
18838#7180.08
18828#7520.07
18819#6510.09
18806#9060.05

Download Willian’s births by year (CSV)

Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.

Is Willian a boy’s or a girl’s name?

Willian has been given almost only to boys: 18 girls in 137 years of records.

Girls and boys named Willian: the SSA national file counts each sex separately.

How many people are named Willian, and how old are they?

2,050 alive in 2026, estimated

That is 50% of the 4,092 Americans ever recorded as Willian. The median Willian alive today is 52 years old; half are between 23 and 69.

The 2020 Census counted 9,695 people named Willian (38 women and girls, 9,657 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 2,220 born in the U.S. The Census count is 4.4 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.

Alive today, by age

100-1091
90-9938
80-89196
70-79251
60-69316
50-59 (median)263
40-49224
30-39141
20-29191
10-19257
0-9163

Alive today, by generation

By generation
GenerationBornAlive
Silent Generation1928-1945210
Baby Boomers1946-1964538
Generation X1965-1980409
Millennials1981-1996276
Generation Z1997-2012363
Generation Alpha2013-2025247

An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.

Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).

Where are babies named Willian born?

The states with the most babies named Willian are California, New York and Pennsylvania, with 47% of its births recorded by state since 1910.

States with the most births: girls and boys together; rank among boys’ names in the state in 2025
StateSince 1910Rank, boysvs. national
California104not ranked0.3×
New York97not ranked0.3×
Pennsylvania75not ranked0.3×
North Carolina68not ranked0.6×
Michigan35not ranked0.2×
Tennessee35not ranked0.4×
Ohio30not ranked0.1×
Georgia28not ranked0.3×
Illinois27not ranked0.1×
Texas23not ranked0.1×

States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Willian with the births its national share predicts year by year, for states with at least 100 births of the name.

Names spelled alike

Of these 2 names spelled alike, given to 4,329 babies since 1880, Willian is the most given (95% of them). In 2025 it was given to 20 of their 27 babies (74%), again the most given.

Willian and the names spelled alike
NameSince 1880Births 2025Peak year
Willian4,092201929
Wilian23772007

Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.

Names that rose and fell in the same decades as Willian

Names whose births rose and fell across the same decades, measured on each decade’s share of births.

NameRecorded1880-2025
Willam3,516
Berton1,874

Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.

More about Willian and names like it

  1. Compare Willian and WilianBirths, ranks, peak and the living estimate side by side.
  2. The most given names of the 1920sWillian peaked in 1929.
  3. California’s most given namesThe state where SSA recorded the most babies named Willian since 1910.
  4. The top names of 1929The year the most babies were named Willian.
  5. The names of the Baby BoomersMost people named Willian alive today were born 1946-1964.
  6. Names starting with WMost given first.

Compare Willian with another name