Guido vs Guillermo

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

Name A

Guido

Boy name · Rank #10943

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Name B

Guillermo

Boy name · Rank #831

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Which name is more popular?

Metric Guido Guillermo
Current Rank #10943 #831
Total Births (all years) 3,352 31,807
Peak Year 1921 1998
Peak Year Births 140 693
Peak Decade 1920ss 1990ss
Gender Boy Boy
First Recorded Year 1904 1885

Births by Decade

Decade Guido Guillermo
1880ss — 5
1890ss — 13
1900ss 40 44
1910ss 733 253
1920ss 1,012 821
1930ss 354 783
1940ss 159 943
1950ss 204 1,495
1960ss 251 2,107
1970ss 195 3,357
1980ss 165 4,364
1990ss 110 6,462
2000ss 95 6,095
2010ss 28 3,615
2020ss 6 1,450

Recent Annual Births (2014–present)

Year Guido Guillermo
2014 — 376
2015 — 389
2016 — 322
2017 — 289
2018 — 314
2019 5 320
2020 — 275
2021 — 299
2022 — 287
2023 — 292
2024 6 297

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, 1904–2024.

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