Gillermo: Name Popularity, History & Rankings (1880

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	55	6	–	#2,379
1930s	33	3	-40%	#2,717
1940s	39	4	+18%	#3,065
1950s	56	6	+44%	#2,862
1960s	38	4	-32%	#2,934
1970s	112	11	+195%	#2,193
1980s	103	10	-8%	#2,968
1990s	138	14	+34%	#3,183
2000s	54	5	-61%	#6,706
2010s	5	1	-91%	#12,945
2020s (to 2025)	–	–	–	–

Decade

Boys

Per year

Change

Best rank

1880s

–

1890s

–

1900s

–

1910s

–

1920s

–

#2,379

1930s

-40%

#2,717

1940s

+18%

#3,065

1950s

+44%

#2,862

1960s

-32%

#2,934

1970s

112

+195%

#2,193

1980s

103

-8%

#2,968

1990s

138

+34%

#3,183

2000s

-61%

#6,706

2010s

-91%

#12,945

2020s (to 2025)

–

The story of Gillermo

Gillermo is not currently in use for newborns in the United States: fewer than five babies received the name in 2025. Its story lives in the historical record below.

Since 1922, 633 American babies have been named Gillermo. Its peak came in 1993, when 21 newborns received the name, the signature sound of the 1990s.

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 Gillermo stood among all boys' names in any year, or use the compare tool to plot it against other names.

How old are people named Gillermo?

The median living Gillermo is about 41 years old; half are between 30 and 53. An estimated 500 people named Gillermo are alive in the United States today.

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

Gillermo year by year

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

Year	Boys	Boys rank
2025	–	–
2024	–	–
2023	–	–
2022	–	–
2021	–	–
2020	–	–
2019	–	–
2018	–	–
2017	–	–
2016	–	–
2015	–	–
2014	–	–
2013	–	–
2012	–	–
2011	5	#12,945
2010	–	–
2009	5	#13,125
2008	7	#10,239
2007	6	#11,409
2006	5	#12,691
2005	6	#10,552
2004	–	–
2003	8	#8,105
2002	10	#6,706
2001	–	–
2000	7	#8,502
1995	15	#4,125
1990	12	#4,501
1985	13	#3,478
1980	9	#4,267
1975	11	#3,313
1970	12	#2,782
1965	–	–
1960	5	#4,257
1955	–	–
1950	7	#3,146
1945	–	–
1940	–	–
1935	–	–
1930	6	#3,750
1925	7	#3,537
1920	–	–
1915	–	–
1910	–	–
1905	–	–
1900	–	–
1895	–	–
1890	–	–
1885	–	–
1880	–	–

Frequently asked questions

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

How old is the average Gillermo?

The median living Gillermo is about 41 years old. Half of all living Gillermos are between 30 and 53 years old.

How many people named Gillermo are alive today?

An estimated 500 people named Gillermo are alive in the United States, based on 633 recorded births and Social Security life tables.

How popular is the name Gillermo in 2025?

Gillermo did not appear in the 2025 Social Security data, which means fewer than five babies received the name that year.

How many people are named Gillermo?

633 babies have been named Gillermo in the United States since 1922, based on Social Security card applications.

When was the name Gillermo most popular?

Gillermo peaked in 1993, when 21 newborns received the name.

Is Gillermo a boy or girl name?

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

Is the name Gillermo rising or falling?

Gillermo has been roughly stable over the past decade.

Gillermo

Gillermo popularity over time

The story of Gillermo

How old are people named Gillermo?

Gillermo year by year

Frequently asked questions

Names like Gillermo