Boy
Guillermo
Guillermo is a boy's name, a solidly familiar choice, that has cooled since its 1990s peak, but is still chosen today.
SpanishSpanish form of William
EtymologyMeaning "resolute protector"
Births by decade
1900s
44
1910s
253
1920s
821
1930s
783
1940s
941
1950s
1,495
1960s
2,113
1970s
3,360
1980s
4,383
1990s
6,490
2000s
6,095
2010s
2,976
Peaked in the 1990s · 29,754 total U.S. births since 1900