How Many People Are Named Kiyoshi?
An estimated 410 people in the United States have the first name Kiyoshi. It is predominantly male (98.8%). The average bearer is 29 years old, and Kiyoshi peaked in popularity in 1923 with 66 births that year.
Below you will find a full statistical profile of Kiyoshi 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 Kiyoshi paired with any surname.
Estimated Living Americans
410
About 1 in 835,986 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
98.8% confidence
Average Age
29
years old
Peak Year
1923
66 births
Total Registered
1,232
since 1880
Gender Distribution for Kiyoshi
Kiyoshi is predominantly male (98.8%), though 15 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Kiyoshi as a male name
Ranked #9,448 in 2024
8 male births in 2024
Peak: 1923 (66 births)
Kiyoshi as a female name
Ranked #16,455 in 2023
5 female births in 2023
Peak: 1990 (5 births)
Kiyoshi: Popularity Over Time
SSA records for Kiyoshi span from the 1910s to the 2020s, covering 10 decades of naming data. The most popular decade for this name was the 1920s, when 478 babies were registered. Kiyoshi has declined significantly from its peak in the 1920s. Recent registrations are a fraction of what they were at the name's height.
Kiyoshi by Decade
How has Kiyoshi 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.
Kiyoshi by State
Birth registrations for Kiyoshi span all 3 states and territories in the SSA database. The highest counts are in Hawaii, California, Washington. The lowest are in Washington, California, Hawaii. On average, about 254 Kiyoshis were registered per state.
Kiyoshi + Last Name Combinations
How many people share a full name with Kiyoshi as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kiyoshi
Other first names starting with K with a similar number of bearers.
Kiyoshi: Questions and Answers
How many people in the U.S. are named Kiyoshi?
We estimate approximately 410 people named Kiyoshi 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 835,986 Americans share this first name.
Is Kiyoshi a common name?
Kiyoshi is classified as "Very Rare" and is more popular than 82.6% of all first names in the SSA database. A total of 1,232 births have been registered with this name since 1880.
When was Kiyoshi most popular?
Kiyoshi reached peak popularity in 1923, when 66 babies were given this name. The average age of a living person named Kiyoshi is approximately 29 years old, reflecting when the name was most commonly given.
Is Kiyoshi a male name?
Kiyoshi is predominantly male. 98.8% of people with this name are male. See the gender breakdown above for full details.
How many Kiyoshi Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kiyoshi Smith, Kiyoshi Johnson, Kiyoshi 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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