How Many People Are Named Oni?
An estimated 279 people in the United States have the first name Oni. It is predominantly female (95.8%). The average bearer is 21 years old, and Oni peaked in popularity in 2020 with 22 births that year.
Below you will find a full statistical profile of Oni 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 Oni paired with any surname.
Estimated Living Americans
279
About 1 in 1,228,510 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
95.8% confidence
Average Age
21
years old
Peak Year
2020
22 births
Total Registered
287
since 1880
Gender Distribution for Oni
Oni is predominantly female (95.8%), though 12 male births have been registered. It functions as a unisex name for a small percentage of bearers.
Oni as a male name
Ranked #10,504 in 2023
7 male births in 2023
Peak: 2023 (7 births)
Oni as a female name
Ranked #14,713 in 2023
6 female births in 2023
Peak: 2020 (17 births)
Oni: Popularity Over Time
SSA records for Oni span from the 1970s to the 2020s, covering 6 decades of naming data. The most popular decade for this name was the 2000s, when 75 babies were registered. While Oni is less common than at its peak in the 2000s, it remains a well-established name with steady registrations.
Oni by Decade
How has Oni 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.
Oni + Last Name Combinations
How many people share a full name with Oni as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Oni
Other first names starting with O with a similar number of bearers.
Oni: Questions and Answers
How many people in the U.S. are named Oni?
We estimate approximately 279 people named Oni 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 1,228,510 Americans share this first name.
Is Oni a common name?
Oni is classified as "Very Rare" and is more popular than 78.4% of all first names in the SSA database. A total of 287 births have been registered with this name since 1880.
When was Oni most popular?
Oni reached peak popularity in 2020, when 22 babies were given this name. The average age of a living person named Oni is approximately 21 years old, reflecting when the name was most commonly given.
Is Oni a female name?
Oni is predominantly female. 95.8% of people with this name are female. See the gender breakdown above for full details.
How many Oni Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Oni Smith, Oni Johnson, Oni 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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