Theseus: 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	–	–	–	–
1930s	–	–	–	–
1940s	–	–	–	–
1950s	–	–	–	–
1960s	–	–	–	–
1970s	–	–	–	–
1980s	–	–	–	–
1990s	–	–	–	–
2000s	–	–	–	–
2010s	288	29	–	#2,760
2020s (to 2025)	154	26	-11%	#3,488

Decade

Boys

Per year

Change

Best rank

1880s

–

1890s

–

1900s

–

1910s

–

1920s

–

1930s

–

1940s

–

1950s

–

1960s

–

1970s

–

1980s

–

1990s

–

2000s

–

2010s

288

–

#2,760

2020s (to 2025)

154

-11%

#3,488

The story of Theseus

Theseus is rare for boys in the United States, ranked #5,181 in 2025 with 19 babies given the name. It is currently declining compared with a decade ago.

Since 2010, 442 American babies have been named Theseus. Its peak came in 2015, when 44 newborns received the name, the signature sound of the 2010s.

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

How old are people named Theseus?

The median living Theseus is about 8 years old; half are between 4 and 11. An estimated 400 people named Theseus 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.

Theseus year by year

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

Year	Boys	Boys rank
2025	19	#5,181
2024	30	#3,778
2023	25	#4,327
2022	24	#4,422
2021	33	#3,488
2020	23	#4,408
2019	31	#3,628
2018	24	#4,341
2017	29	#3,760
2016	35	#3,282
2015	44	#2,760
2014	43	#2,800
2013	31	#3,488
2012	41	#2,900
2011	5	#14,141
2010	5	#14,051
2009	–	–
2008	–	–
2007	–	–
2006	–	–
2005	–	–
2004	–	–
2003	–	–
2002	–	–
2001	–	–
2000	–	–
1995	–	–
1990	–	–
1985	–	–
1980	–	–
1975	–	–
1970	–	–
1965	–	–
1960	–	–
1955	–	–
1950	–	–
1945	–	–
1940	–	–
1935	–	–
1930	–	–
1925	–	–
1920	–	–
1915	–	–
1910	–	–
1905	–	–
1900	–	–
1895	–	–
1890	–	–
1885	–	–
1880	–	–

Frequently asked questions

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

How old is the average Theseus?

The median living Theseus is about 8 years old. Half of all living Theseuss are between 4 and 11 years old.

How many people named Theseus are alive today?

An estimated 400 people named Theseus are alive in the United States, based on 442 recorded births and Social Security life tables.

How popular is the name Theseus in 2025?

Theseus ranked #5,181 among boys' names in the United States in 2025, with 19 babies given the name, according to Social Security Administration data.

How many people are named Theseus?

442 babies have been named Theseus in the United States since 2010, based on Social Security card applications.

When was the name Theseus most popular?

Theseus peaked in 2015, when 44 newborns received the name.

Is Theseus a boy or girl name?

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

Is the name Theseus rising or falling?

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

Theseus

Theseus popularity over time

The story of Theseus

How old are people named Theseus?

Theseus year by year

Frequently asked questions

Names like Theseus