How Many People Are Named Tetsuo?
An estimated 14 people in the United States have the first name Tetsuo. It is almost exclusively a male name. The average bearer is 94 years old, and Tetsuo peaked in popularity in 1924 with 26 births that year.
Below you will find a full statistical profile of Tetsuo as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Tetsuo paired with any surname.
Key Insights
- With an average bearer age of 94, Tetsuo is a vintage name most associated with earlier generations. Most living bearers were born before 1942.
- Tetsuo is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
14
About 1 in 24,482,453 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
94
years old
Peak Year
1924
26 births
Total Registered
268
since 1880
Gender Distribution for Tetsuo
Tetsuo is almost exclusively a male name. Out of 268 total births registered, 100.0% were male.
Tetsuo as a male name
Ranked #3,850 in 1944
5 male births in 1944
Peak: 1924 (26 births)
Tetsuo: Popularity Over Time
SSA records for Tetsuo span from the 1910s to the 1940s, covering 4 decades of naming data. The most popular decade for this name was the 1920s, when 179 babies were registered. Tetsuo has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Tetsuo by Decade
How has Tetsuo tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Tetsuo by State
Tetsuo + Last Name Combinations
How many people share a full name with Tetsuo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Tetsuo
Other first names starting with T with a similar number of bearers.
Tetsuo: Questions and Answers
How many people in the U.S. are named Tetsuo?
We estimate approximately 14 people named Tetsuo are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 24,482,453 Americans share this first name.
Is Tetsuo a common name?
Tetsuo is classified as "Very Rare" and is more popular than 34% of all first names in the SSA database. A total of 268 births have been registered with this name since 1880.
When was Tetsuo most popular?
Tetsuo reached peak popularity in 1924, when 26 babies were given this name. The average age of a living person named Tetsuo is approximately 94 years old, reflecting when the name was most commonly given.
Is Tetsuo a male name?
Tetsuo is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Tetsuo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Tetsuo Smith, Tetsuo Johnson, Tetsuo Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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