How Many People Are Named Mitsuo?
An estimated 22 people in the United States have the first name Mitsuo. It is almost exclusively a male name. The average bearer is 96 years old, and Mitsuo peaked in popularity in 1925 with 40 births that year.
Below you will find a full statistical profile of Mitsuo 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 Mitsuo paired with any surname.
Key Insights
- With an average bearer age of 96, Mitsuo is a vintage name most associated with earlier generations. Most living bearers were born before 1940.
- Mitsuo is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
22
About 1 in 15,579,743 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
96
years old
Peak Year
1925
40 births
Total Registered
521
since 1880
Gender Distribution for Mitsuo
Mitsuo is almost exclusively a male name. Out of 521 total births registered, 100.0% were male.
Mitsuo as a male name
Ranked #3,789 in 1940
5 male births in 1940
Peak: 1925 (40 births)
Mitsuo: Popularity Over Time
SSA records for Mitsuo span from the 1910s to the 1940s, covering 4 decades of naming data. The most popular decade for this name was the 1920s, when 321 babies were registered. Mitsuo has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Mitsuo by Decade
How has Mitsuo 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.
Mitsuo by State
Mitsuo + Last Name Combinations
How many people share a full name with Mitsuo as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Mitsuo
Other first names starting with M with a similar number of bearers.
Mitsuo: Questions and Answers
How many people in the U.S. are named Mitsuo?
We estimate approximately 22 people named Mitsuo 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 15,579,743 Americans share this first name.
Is Mitsuo a common name?
Mitsuo is classified as "Very Rare" and is more popular than 41.6% of all first names in the SSA database. A total of 521 births have been registered with this name since 1880.
When was Mitsuo most popular?
Mitsuo reached peak popularity in 1925, when 40 babies were given this name. The average age of a living person named Mitsuo is approximately 96 years old, reflecting when the name was most commonly given.
Is Mitsuo a male name?
Mitsuo is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Mitsuo Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Mitsuo Smith, Mitsuo Johnson, Mitsuo 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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