How Many People Are Named Oluwaseyi?
An estimated 318 people in the United States have the first name Oluwaseyi. It is used for both genders, with 72.0% male. The average bearer is 19 years old, and Oluwaseyi peaked in popularity in 2005 with 22 births that year.
Below you will find a full statistical profile of Oluwaseyi 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 Oluwaseyi paired with any surname.
Estimated Living Americans
318
About 1 in 1,077,844 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
72.0% confidence
Average Age
19
years old
Peak Year
2005
22 births
Total Registered
322
since 1880
Gender Distribution for Oluwaseyi
Oluwaseyi is a genuinely unisex name, used for both males (72.0%) and females (28.0%). Out of 322 total births registered, 232 were male and 90 were female.
Oluwaseyi as a male name
Ranked #9,598 in 2024
8 male births in 2024
Peak: 2002 (14 births)
Oluwaseyi as a female name
Ranked #17,351 in 2019
5 female births in 2019
Peak: 2005 (11 births)
Oluwaseyi: Popularity Over Time
SSA records for Oluwaseyi span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2000s, when 148 babies were registered. Oluwaseyi has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Oluwaseyi by Decade
How has Oluwaseyi 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.
Oluwaseyi by State
Oluwaseyi + Last Name Combinations
How many people share a full name with Oluwaseyi as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Oluwaseyi
Other first names starting with O with a similar number of bearers.
Oluwaseyi: Questions and Answers
How many people in the U.S. are named Oluwaseyi?
We estimate approximately 318 people named Oluwaseyi 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 1,077,844 Americans share this first name.
Is Oluwaseyi a common name?
Oluwaseyi is classified as "Very Rare" and is more popular than 79.8% of all first names in the SSA database. A total of 322 births have been registered with this name since 1880.
When was Oluwaseyi most popular?
Oluwaseyi reached peak popularity in 2005, when 22 babies were given this name. The average age of a living person named Oluwaseyi is approximately 19 years old, reflecting when the name was most commonly given.
Is Oluwaseyi a male name?
Oluwaseyi is predominantly male. 72.0% of people with this name are male. See the gender breakdown above for full details.
How many Oluwaseyi Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Oluwaseyi Smith, Oluwaseyi Johnson, Oluwaseyi 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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