US rank #10943 Boys' name Peak 1921 3,352 births

Guido — #10943 US boys' name

3,352 babies named Guido in U.S. Social Security records since 1904, with the highest year being 1921. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.

1900s401910s7331920s10121930s3541940s1591950s2041960s2511970s1951980s1651990s1102000s952010s282020s6
#10943
of 14,243 boys in use

More common than 23% of names given to boys today.

1920s
Peak decade

30% of everyone ever named Guido was born in this single decade.

1921
Single peak year

140 babies were named Guido in 1921 — its busiest year on record.

What the Data Says About Guido

The Social Security Administration has registered 3,352 babies named Guido between 1904 and 2024, spanning 121 consecutive years of U.S. birth records. As a boy's name, Guido currently holds the #10943 rank among boys for 2024. The name reached its historical peak in 1921, when 140 babies received it in a single year.

Decade-level aggregation shows that Guido performed strongest in the 1920s, accumulating 1,012 births during that ten-year window. Across the 13 decades of recorded activity, Guido shows a clear decline from its mid-century high. Geographically, the name is most concentrated in New York, which accounts for 623 births — the largest state-level total in the dataset — followed by Pennsylvania and Massachusetts. In total, SSA state-level files list Guido in 10 of the 51 U.S. reporting jurisdictions.

No etymological entry is currently available for Guido in our reference dataset. These figures derive from SSA's annual national and state-level name files, which include any name appearing at least five times in a given year or state-year; names below that threshold are suppressed for privacy and therefore excluded from the totals shown here. The 3,352 total represents a lower bound — actual usage may be higher in years or states where the count fell below the disclosure floor. This page is provided for informational and research purposes only and does not constitute personal, legal, or naming advice.

Guido at a glance

Outside the top 1,000

Total births

3,352

Since 1904

121 years of records

Peak year

1921

140 births that year

Strongest decade: 1920s

Current rank

#10,943

Among boys

As of 2024

Active since

1904

Recorded for 121 years

Last year on file: 2024

Guido popularity over time

Annual U.S. births registered with the Social Security Administration · 2024–1904

Outside the top 1,000
Peak year (1921)
140
Annual births at peak — across 121 years of records
-50050100150 202420011987197319591945193119171904 7

Guido by decade

Total births in each ten-year window — peak vs trough at a glance

Peak: 1920s
Peak decade
1920s
1,012 births that decade — 30% of Guido's all-time total
1900s401910s7331920s10121930s3541940s1591950s2041960s2511970s1951980s1651990s1102000s952010s282020s6

Guido by state

Where Guido concentrates geographically — total births since 1904

Geographically diffuse
Top 8 states by recorded births for the name Guido
Rank State Visual share Births Share of total
#1 New York
623 18.6%
#2 Pennsylvania
357 10.7%
#3 Massachusetts
235 7.0%
#4 California
228 6.8%
#5 Rhode Island
110 3.3%
#6 Illinois
102 3.0%
#7 New Jersey
61 1.8%
#8 Ohio
45 1.3%
New York share of Guido's total US births 18.6%
Even split

623 of 3,352 births nationwide. Compared to a flat distribution across 10 reporting states.

Guido appears in 10 states. Explore state details →

Frequently Asked Questions

How popular is the name Guido?
3,352 babies have been named Guido since 1904. It currently ranks #10943 among boys. The peak year was 1921 with 140 births.
When was Guido most popular?
Guido was most popular in the 1920s decade with 1,012 total births. The single peak year was 1921.
Where is Guido most popular?
The top states for the name Guido are New York (623 births), Pennsylvania (357 births), Massachusetts (235 births).
How long has the name Guido been used?
Guido has been recorded in Social Security data since 1904, spanning 121 years of data through 2024.
What names are similar to Guido?
Names with a similar sound or spelling include Guillermo, Guilford, Guiseppe, Guilherme, and 4 more. These share a common prefix and are also used for boys.

Keep exploring Guido

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Data Sources

Data as of 2024. Source: U.S. Social Security Administration (SSA).

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications — National Data, 1904–2024 (ssa.gov/oact/babynames). National-level data includes all names with 5 or more occurrences in a given year.

State-level: Source: U.S. Social Security Administration, Baby Names — State-Level Files (namesbystate.zip). Includes all names with 5 or more occurrences per state per year; rarer names are excluded for privacy.