Tools / Baby names / G
Guillermo
BoyMeaning of Guillermo: Spanish: 'resolute protector'
Guillermo is a boy's name most strongly associated with Spanish naming. It has 9 letters and 3 syllables, and it is familiar but far from overused — 908th most popular boys' name in the United States in 2025.
US rank 2025
#908
264 babies in 2025
England & Wales 2024
—
Fewer than 3 babies or unlisted
US babies since 1880
32,148
First recorded 1885 · peak 1998
Trend
stable
Style: uncommon
Popularity over time
Gender split
100% boys · 0% girls, based on US, UK and international usage.
Origins & cultures
More Spanish boys' names
Spanish · 2 syllables
US #8UK #178
Spanish · 3 syllables
US #27UK #285
Spanish · 1 syllable
US #152UK #567
Spanish · 1 syllable
US #100UK #1199
Spanish · 2 syllables
US #158UK #968
Spanish · 2 syllables
US #222UK #576
Spanish · 2 syllables
US #162UK #440
Spanish · 1 syllable
US #165UK #1595
Spanish · 2 syllables
US #382UK #898
Spanish · 1 syllable
US #335UK #227
Spanish · 3 syllables
US #329UK #1000
Spanish · 2 syllables
US #174UK #576
Other names starting with G
Greek · 1 syllable
US #133UK #6
Hebrew · 2 syllables
US #39UK #74
English · 2 syllables
US #53UK #90
Italian · 3 syllables
US #129UK #576
English · 2 syllables
US #156UK #427
French · 1 syllable
US #93UK #1199
Scottish · 2 syllables
US #315UK #898
Greek · 3 syllables
US #601UK #1460
Hebrew · 2 syllables
US #346UK #826
Scottish · 2 syllables
US #126UK #5119
Welsh · 2 syllables
US #224UK #1076
French · 1 syllable
US #1622UK #1076