How Many People Are Named Teruo?
An estimated 10 people in the United States have the first name Teruo. It is almost exclusively a male name. The average bearer is 103 years old, and Teruo peaked in popularity in 1927 with 37 births that year.
Below you will find a full statistical profile of Teruo 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 Teruo paired with any surname.
Key Insights
- With an average bearer age of 103, Teruo is a vintage name most associated with earlier generations. Most living bearers were born before 1933.
- Teruo is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
10
About 1 in 34,275,434 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
103
years old
Peak Year
1927
37 births
Total Registered
274
since 1880
Gender Distribution for Teruo
Teruo is almost exclusively a male name. Out of 274 total births registered, 100.0% were male.
Teruo as a male name
Ranked #4,093 in 1935
5 male births in 1935
Peak: 1927 (37 births)
Teruo: Popularity Over Time
SSA records for Teruo span from the 1910s to the 1930s, covering 3 decades of naming data. The most popular decade for this name was the 1920s, when 183 babies were registered. Teruo has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Teruo by Decade
How has Teruo 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.
Teruo by State
Teruo + Last Name Combinations
How many people share a full name with Teruo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Teruo
Other first names starting with T with a similar number of bearers.
Teruo: Questions and Answers
How many people in the U.S. are named Teruo?
We estimate approximately 10 people named Teruo 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 34,275,434 Americans share this first name.
Is Teruo a common name?
Teruo is classified as "Very Rare" and is more popular than 28.5% of all first names in the SSA database. A total of 274 births have been registered with this name since 1880.
When was Teruo most popular?
Teruo reached peak popularity in 1927, when 37 babies were given this name. The average age of a living person named Teruo is approximately 103 years old, reflecting when the name was most commonly given.
Is Teruo a male name?
Teruo is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Teruo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Teruo Smith, Teruo Johnson, Teruo 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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