Willem comes from the Germanic / Dutch tradition, meaning Resolute protector, strong-willed.
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How popular is Willem?
2003peak year
Willem has settled into a steady rhythm — neither rising sharply nor fading, holding a consistent place in U.S. birth records. It currently ranks well outside the top 1,000 (around #2283), with about 62 babies named Willem each year. In 2003, 122 babies received the name (ranked #1208). Total registrations across all years since 1880: roughly 2,788.
Year-by-year registrations1880–2024 · U.S. Social Security data
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