Willian Boy
How popular is Willian?
#4,856 boy name in 2025
20 baby boys were named Willian in the US in 2025, making it the 4856th most popular boy name.
2,130living people named Willian (est.)
54median age of people named Willian
4,092babies named Willian since 1880
1 in 165,767US babies born in 2025
Willian popularity over time
Boys Girls
| Rank in 2025 | #4,856 for boys (▲ 799 from 2024) |
|---|---|
| Babies in 2025 | 20 boys |
| 10-year trend | Steady (-5% babies vs 2015) |
| Earlier ranks | #4,543 in 2015, #6,292 in 2020 |
| Peak year | 1929 (84 boys) |
| Highest rank | #566 in 1890 |
| First recorded | 1880 |
| Boys vs girls (last 10 years) | 100% boys, 0% girls |
| Chance a classmate shares it | 0.0% in a class of 25 kids born in 2025 |
Willian counting every spelling
Social Security counts each spelling as its own name. Adding together the spellings that sound alike, the Willian family of names ranked #3,074 for boys in 2025 (#3,441 the year before), with 27 babies in all.
| Spelling | Boys in 2025 | Share |
|---|---|---|
| Willian | 20 | 74% |
| Wilian | 7 | 26% |
Spellings are grouped by how they sound, using our own rules, so a few groupings may not match how your family says the name.
Willian by decade
| Decade | Baby boys | Best rank |
|---|---|---|
| 1880s | 81 | #578 |
| 1890s | 46 | #566 |
| 1900s | 29 | #998 |
| 1910s | 194 | #1,176 |
| 1920s | 597 | #668 |
| 1930s | 560 | #684 |
| 1940s | 555 | #743 |
| 1950s | 415 | #1,018 |
| 1960s | 416 | #1,045 |
| 1970s | 240 | #1,313 |
| 1980s | 225 | #1,765 |
| 1990s | 138 | #3,303 |
| 2000s | 232 | #3,237 |
| 2010s | 243 | #2,999 |
| 2020s | 103 | #4,856 |
Boy names about as popular as Willian
Questions
- Is Willian a boy or girl name?
- Willian is mostly a boy name. Over the last 10 years, 100% of babies named Willian were boys.
- How popular is the name Willian?
- 20 baby boys were named Willian in the US in 2025, making it the 4856th most popular boy name.
- When was Willian most popular?
- Willian peaked in 1929, when 84 boys were given the name. Its highest rank was #566 in 1890.
- How many people are named Willian?
- 4,092 babies have been named Willian in the US since 1880. We estimate about 2,130 of them are alive in 2026, with a median age of 54.
Source: Social Security Administration baby name data, 1880 to 2025 (names given to at least 5 babies of a sex in a year). Living-people and median-age figures are our estimates using US life tables. How we calculate.