How Many People Are Named Osei?
An estimated 227 people in the United States have the first name Osei. It is almost exclusively a male name. The average bearer is 28 years old, and Osei peaked in popularity in 1981 with 11 births that year.
Below you will find a full statistical profile of Osei 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 Osei paired with any surname.
Estimated Living Americans
227
About 1 in 1,509,931 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
100.0% confidence
Average Age
28
years old
Peak Year
1981
11 births
Total Registered
233
since 1880
Gender Distribution for Osei
Osei is almost exclusively a male name. Out of 233 total births registered, 100.0% were male.
Osei as a male name
Ranked #8,738 in 2023
9 male births in 2023
Peak: 1981 (11 births)
Osei: Popularity Over Time
SSA records for Osei span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 1990s, when 55 babies were registered. Osei has declined significantly from its peak in the 1990s. Recent registrations are a fraction of what they were at the name's height.
Osei by Decade
How has Osei 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.
Osei by State
Osei + Last Name Combinations
How many people share a full name with Osei as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Osei
Other first names starting with O with a similar number of bearers.
Osei: Questions and Answers
How many people in the U.S. are named Osei?
We estimate approximately 227 people named Osei 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 1,509,931 Americans share this first name.
Is Osei a common name?
Osei is classified as "Very Rare" and is more popular than 75.8% of all first names in the SSA database. A total of 233 births have been registered with this name since 1880.
When was Osei most popular?
Osei reached peak popularity in 1981, when 11 babies were given this name. The average age of a living person named Osei is approximately 28 years old, reflecting when the name was most commonly given.
Is Osei a male name?
Osei is predominantly male. 100.0% of people with this name are male. See the gender breakdown above for full details.
How many Osei Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Osei Smith, Osei Johnson, Osei 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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