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Guilherme
BoyMeaning of Guilherme: Portuguese: 'resolute protector'
Guilherme is a boy's name most strongly associated with Portuguese naming. It has 9 letters and 2 syllables, and it is a genuinely rare and unique choice — 8535th most popular boys' name in the United States in 2025 and 5119th in England & Wales.
US rank 2025
#8535
8 babies in 2025
England & Wales 2024
#5119
3 babies in 2024
US babies since 1880
522
First recorded 1921 · peak 2006
Trend
stable
Style: rare
Popularity over time
Gender split
100% boys · 0% girls, based on US, UK and international usage.
Origins & cultures
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