How Many People Are Named Un?
An estimated 13 people in the United States have the first name Un. It is used for both genders, with 50.0% female. The average bearer is 43 years old, and Un peaked in popularity in 1978 with 7 births that year.
Below you will find a full statistical profile of Un 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 Un paired with any surname.
Key Insights
- Un is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
13
About 1 in 26,365,718 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
50.0% confidence
Average Age
43
years old
Peak Year
1978
7 births
Total Registered
14
since 1880
Gender Distribution for Un
Un is a genuinely unisex name, used for both males (50.0%) and females (50.0%). Out of 14 total births registered, 7 were male and 7 were female.
Un as a male name
Ranked #6,887 in 1989
7 male births in 1989
Peak: 1989 (7 births)
Un as a female name
Ranked #8,521 in 1978
7 female births in 1978
Peak: 1978 (7 births)
Un: Popularity Over Time
SSA records for Un span from the 1970s to the 1980s, covering 2 decades of naming data. The most popular decade for this name was the 1980s, when 7 babies were registered. Un remains highly popular today, with recent registration numbers near its historical peak.
Un by Decade
How has Un 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.
Un by State
Un + Last Name Combinations
How many people share a full name with Un as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Un
Other first names starting with U with a similar number of bearers.
Un: Questions and Answers
How many people in the U.S. are named Un?
We estimate approximately 13 people named Un 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 26,365,718 Americans share this first name.
Is Un a common name?
Un is classified as "Very Rare" and is more popular than 33.2% of all first names in the SSA database. A total of 14 births have been registered with this name since 1880.
When was Un most popular?
Un reached peak popularity in 1978, when 7 babies were given this name. The average age of a living person named Un is approximately 43 years old, reflecting when the name was most commonly given.
Is Un a female name?
Un is predominantly female. 50.0% of people with this name are female. See the gender breakdown above for full details.
How many Un Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Un Smith, Un Johnson, Un 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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