Boy · #12,301 in 2026

Guilherme

Name: Popularity of the name Guilherme in U.S. births, 1880–2026
Creator: U.S. Social Security Administration
License: https://www.ssa.gov/foia/
Keywords: Guilherme, baby name, popularity, U.S., SSA, rankings

Guilherme is a Portuguese given name, equivalent to William in English. The feminine form of this name is Guilhermina. Diminutive forms include Guilhermino. Vilma is another female variant of the name.

Current Rank

#12,301

Peak Rank

#2,881 (2006)

Total Babies

514

5-Yr Trend

Stable

1921

First Year

2024

Last Year

2006

Peak Year

#2881

Peak Rank

514

Total Count

Years Active

Meaning & Origin of Guilherme

What this name means, where it came from, and how it has traveled across cultures.

Source: Wikipedia (CC BY-SA 3.0). Read more →

The Story of Guilherme

Guilherme first appeared in U.S. Social Security Administration records as a baby boy name in 1921, with 6 babies given the name that year. Its peak popularity came in 2006, when 39 Guilhermes were born — ranking #2,881 that year. As of 2026, Guilherme ranks #12,301 for baby boys with 5 births, with steady use. In total, more than 514 Guilhermes have been born in the U.S. since records began in 1880, spanning the 1920s through the 2020s.

Popularity Over Time

Popularity by State

Top 10

11-50

51-100

101-500

500+

No data

Names that sound like Guilherme

Phonetically similar names — useful when Guilherme is the vibe but a different syllable count or letter feel might suit better. Linked entries have a profile on Peek a Name.

Gwilym
Gillham
Gwalior
Guillaume
Gular
Culham
Quilter
Galore
Golore
Gulper
Goulburn
Queller

Source: Datamuse . Phonetic similarity ranking, not curated.

Frequently Asked Questions about Guilherme

What does the name Guilherme mean?

How popular is Guilherme in 2026?

In 2026, Guilherme ranks #12,301 among boys' names in the U.S., with 5 babies given the name that year.

When was Guilherme most popular?

Guilherme reached its peak popularity in 2006, ranking #2,881 that year with 39 babies given the name.

In which U.S. states is Guilherme most popular?

Guilherme has historically been most popular in Massachusetts, Connecticut, New Jersey. Rankings vary year to year, but these states show the strongest concentration of births named Guilherme.

Is Guilherme a unisex name?

In U.S. Social Security records, Guilherme is primarily a boy's name. We don't have meaningful data for it as a girl's name.

What names go well with Guilherme?

Names that share a similar style or popularity range with Guilherme include Nell, Aquilla, Flavius. These pairings are based on rank proximity and naming era in U.S. data.

About the name Guilherme

Guilherme is a boy baby name tracked by the U.S. Social Security Administration. It first appeared in SSA records in 1921 and has accumulated 514 births in the dataset. Guilherme's peak popularity came in 2006 when it ranked #2,881. Use the chart and map above to compare Guilherme's trajectory across years and U.S. states, or browse the related names section to discover similar choices.

Continue exploring

Data sources

Birth statistics (counts, ranks, years 1880–2026) — U.S. Social Security Administration . Predictions for years not yet released by SSA are computed by Peek a Name from historical trends; we update with official data as soon as it ships.
Etymology, cultural origins, and related forms — Behind the Name (used under their public API terms).
Meaning prose and editorial summary — Wikipedia article extracts, licensed under CC BY-SA 3.0 .
Predicted nationality distribution — Nationalize.io .
Phonetically similar names — Datamuse .

Peek a Name aggregates and presents the above data for informational purposes. Statistical predictions and external attributions are clearly labelled where shown; we make no guarantee of accuracy beyond what each source provides.