How Many People Are Named Oluwaseun?
An estimated 406 people in the United States have the first name Oluwaseun. It is used for both genders, with 65.9% male. The average bearer is 21 years old, and Oluwaseun peaked in popularity in 2007 with 24 births that year.
Below you will find a full statistical profile of Oluwaseun 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 Oluwaseun paired with any surname.
Estimated Living Americans
406
About 1 in 844,223 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
65.9% confidence
Average Age
21
years old
Peak Year
2007
24 births
Total Registered
413
since 1880
Gender Distribution for Oluwaseun
Oluwaseun is a genuinely unisex name, used for both males (65.9%) and females (34.1%). Out of 413 total births registered, 272 were male and 141 were female.
Oluwaseun as a male name
Ranked #11,918 in 2022
6 male births in 2022
Peak: 2004 (17 births)
Oluwaseun as a female name
Ranked #15,176 in 2018
6 female births in 2018
Peak: 2005 (10 births)
Oluwaseun: Popularity Over Time
SSA records for Oluwaseun span from the 1980s to the 2020s, covering 5 decades of naming data. The most popular decade for this name was the 2000s, when 170 babies were registered. Oluwaseun has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Oluwaseun by Decade
How has Oluwaseun 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.
Oluwaseun by State
Oluwaseun + Last Name Combinations
How many people share a full name with Oluwaseun as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Oluwaseun
Other first names starting with O with a similar number of bearers.
Oluwaseun: Questions and Answers
How many people in the U.S. are named Oluwaseun?
We estimate approximately 406 people named Oluwaseun 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 844,223 Americans share this first name.
Is Oluwaseun a common name?
Oluwaseun is classified as "Very Rare" and is more popular than 82.5% of all first names in the SSA database. A total of 413 births have been registered with this name since 1880.
When was Oluwaseun most popular?
Oluwaseun reached peak popularity in 2007, when 24 babies were given this name. The average age of a living person named Oluwaseun is approximately 21 years old, reflecting when the name was most commonly given.
Is Oluwaseun a male name?
Oluwaseun is predominantly male. 65.9% of people with this name are male. See the gender breakdown above for full details.
How many Oluwaseun Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Oluwaseun Smith, Oluwaseun Johnson, Oluwaseun 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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