Baby Names US
boys' name ★ peaked 2006

Guilherme

Gender Boy Rank 2025 #9,195
Rank 2025
#9,195
among boys · ↑3,759 vs 2024
Babies in 2025
8
named Guilherme
How common
1 in 213,510
boys born in 2025
Peak year
2006
39 babies
All-time total
522
#7,701 all-time among boys
First recorded
1921
in Social Security records

Guilherme popularity over time

522 babies have been named Guilherme since 1921, according to official Social Security records. Switch measure to see births per year or the yearly rank.

Measure
Births per 1,000 babies of that sex, comparable across eras
0.010.010.020.0218801900192019401960198020002020Peak 2006Boys

By decade. Change compares yearly averages, so the current partial decade is on equal footing. Best rank is the name's best yearly rank within the decade.

Decade Boys Per year Change Best rank
1880s – – – –
1890s – – – –
1900s – – – –
1910s – – – –
1920s 6 1 – #4,059
1930s – – – –
1940s – – – –
1950s – – – –
1960s – – – –
1970s – – – –
1980s 6 1 – #5,908
1990s 63 6 +950% #5,784
2000s 257 26 +308% #2,896
2010s 149 15 -42% #4,417
2020s (to 2025) 41 7 -54% #7,189

The story of Guilherme

Guilherme is rare for boys in the United States, ranked #9,195 in 2025 with 8 babies given the name. It is currently declining compared with a decade ago.

Since 1921, 522 American babies have been named Guilherme. Its peak came in 2006, when 39 newborns received the name, the signature sound of the 2000s.

The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Guilherme stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Guilherme?

The median living Guilherme is about 18 years old; half are between 12 and 22. An estimated 500 people named Guilherme are alive in the United States today.

median 18 020406080100

Estimated from births per year and Social Security period life tables; an approximation of the living age distribution, by age in years.

Guilherme year by year

Every year since 2001, and five-year steps back to 1880. Rank is within each sex.

Year Boys Boys rank
2025 8 #9,195
2024 5 #12,954
2023 – –
2022 7 #10,163
2021 10 #7,791
2020 11 #7,189
2019 17 #5,412
2018 9 #8,394
2017 18 #5,167
2016 15 #5,882
2015 12 #6,813
2014 12 #6,783
2013 12 #6,753
2012 16 #5,568
2011 22 #4,417
2010 16 #5,576
2009 30 #3,587
2008 35 #3,246
2007 32 #3,398
2006 39 #2,896
2005 25 #3,756
2004 21 #4,172
2003 14 #5,365
2002 17 #4,573
2001 29 #3,091
2000 15 #4,876
1995 5 #9,352
1990 8 #6,038
1985 – –
1980 – –
1975 – –
1970 – –
1965 – –
1960 – –
1955 – –
1950 – –
1945 – –
1940 – –
1935 – –
1930 – –
1925 – –
1920 – –
1915 – –
1910 – –
1905 – –
1900 – –
1895 – –
1890 – –
1885 – –
1880 – –

Famous people named Guilherme

The most globally famous bearers of the name, ranked by fame across Wikipedia editions (Pantheon project, MIT).

  1. 1 Guilherme Arana Guilherme Arana Brazilian footballer (born 1997) Contemporary
  2. 2 Guilherme Siqueira Guilherme Siqueira Brazilian footballer (born 1986) Contemporary
  3. 3 Guilherme Marinato Guilherme Marinato Footballer (born 1985) Contemporary
  4. 4 Guilherme de Cássio Alves Guilherme de Cássio Alves Brazilian footballer and manager (born 1974) Contemporary
  5. 5 Guilherme Milhomem Gusmão Guilherme Milhomem Gusmão Brazilian footballer b. 1988 · Contemporary
  6. 6 Guilherme Gimenez de Souza Guilherme Gimenez de Souza Brazilian footballer (1995–2016) Contemporary
  7. 7 Guilherme dos Santos Torres Qatari footballer (born 1991) Contemporary
  8. 8 Guilherme Costa Marques Guilherme Costa Marques Brazilian footballer b. 1991 · Contemporary
  9. 9 Guilherme Santos Topics referred to by the same term b. 1988 · Contemporary
  10. 10 Guilherme Almeida Augusto Brazilian footballer (born 1993) Contemporary

Portraits from Wikipedia (Wikimedia Commons).

Frequently asked questions

Quick answers about Guilherme, drawn from the same Social Security data as the charts above.

How old is the average Guilherme?

The median living Guilherme is about 18 years old. Half of all living Guilhermes are between 12 and 22 years old.

How many people named Guilherme are alive today?

An estimated 500 people named Guilherme are alive in the United States, based on 522 recorded births and Social Security life tables.

How popular is the name Guilherme in 2025?

Guilherme ranked #9,195 among boys' names in the United States in 2025, with 8 babies given the name, according to Social Security Administration data.

How many people are named Guilherme?

522 babies have been named Guilherme in the United States since 1921, based on Social Security card applications.

When was the name Guilherme most popular?

Guilherme peaked in 2006, when 39 newborns received the name.

Is Guilherme a boy or girl name?

Guilherme is overwhelmingly a boy's name: 100% of babies with the name.

Is the name Guilherme rising or falling?

Guilherme is declining, less popular now than a decade ago.

Who are famous people named Guilherme?

Well-known people named Guilherme include Guilherme Arana (soccer player), Guilherme Siqueira (soccer player), Guilherme Marinato (soccer player).

Names like Guilherme

Names that sound and feel close to Guilherme: shared sounds, similar era, similar popularity. Each links to its full history.

Compare Guilherme with similar names → More names starting with G →