Guilherme vs Guido

Side-by-side comparison of Guilherme and Guido — popularity rank, total births, peak decade, and historical trends from Social Security Administration data.

Name A

Guilherme

Boy name · Rank #12479

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Name B

Guido

Boy name · Rank #10943

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Which name is more popular?

Metric Guilherme Guido
Current Rank #12479 #10943
Total Births (all years) 514 3,352
Peak Year 2006 1921
Peak Year Births 39 140
Peak Decade 2000ss 1920ss
Gender Boy Boy
First Recorded Year 1921 1904

Births by Decade

Decade Guilherme Guido
1900ss — 40
1910ss — 733
1920ss 6 1,012
1930ss — 354
1940ss — 159
1950ss — 204
1960ss — 251
1970ss — 195
1980ss 6 165
1990ss 63 110
2000ss 257 95
2010ss 149 28
2020ss 33 6

Recent Annual Births (2014–present)

Year Guilherme Guido
2014 12 —
2015 12 —
2016 15 —
2017 18 —
2018 9 —
2019 17 5
2020 11 —
2021 10 —
2022 7 —
2024 5 6

Data Sources

Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, ssa.gov/oact/babynames.
Source: SSA Annual Name Rankings, 1921–2024.

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