How Many People Are Named Tadao?
An estimated 10 people in the United States have the first name Tadao. It is almost exclusively a male name. The average bearer is 101 years old, and Tadao peaked in popularity in 1920 with 26 births that year.
Below you will find a full statistical profile of Tadao 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 Tadao paired with any surname.
Key Insights
- With an average bearer age of 101, Tadao is a vintage name most associated with earlier generations. Most living bearers were born before 1935.
- Tadao 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
101
years old
Peak Year
1920
26 births
Total Registered
295
since 1880
Gender Distribution for Tadao
Tadao is almost exclusively a male name. Out of 295 total births registered, 100.0% were male.
Tadao as a male name
Ranked #3,977 in 1938
5 male births in 1938
Peak: 1920 (26 births)
Tadao: Popularity Over Time
SSA records for Tadao span from the 1910s to the 1930s, covering 3 decades of naming data. The most popular decade for this name was the 1920s, when 167 babies were registered. Tadao has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Tadao by Decade
How has Tadao 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.
Tadao by State
Tadao + Last Name Combinations
How many people share a full name with Tadao as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Tadao
Other first names starting with T with a similar number of bearers.
Tadao: Questions and Answers
How many people in the U.S. are named Tadao?
We estimate approximately 10 people named Tadao 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 Tadao a common name?
Tadao is classified as "Very Rare" and is more popular than 28.5% of all first names in the SSA database. A total of 295 births have been registered with this name since 1880.
When was Tadao most popular?
Tadao reached peak popularity in 1920, when 26 babies were given this name. The average age of a living person named Tadao is approximately 101 years old, reflecting when the name was most commonly given.
Is Tadao a male name?
Tadao is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Tadao Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Tadao Smith, Tadao Johnson, Tadao 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.
Search for a full name combination
How Many of Me