Willian
Meaning
a spelling variant of William, from Germanic wil, will/desire; the standard Brazilian spelling, more common there than William itself
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Willian has stayed rare in US records the whole time: no peak decade to name.
Popularity in Brazil
161,526 people · the #206 first name in Brazil · about 1 in 1,258 · median age 28
Among people named Willian living in Brazil at the 2022 census, more were born in the 1990s than in any other decade.
The census also counted 4,057 born between 2020 and August 2022, too recent a span to chart.
Source: IBGE, Censo Demográfico 2022
The Willian deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Willian truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Willian fits with your family’s names and surname.
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