How Many People Are Named Onella?
An estimated 12 people in the United States have the first name Onella. It is almost exclusively a female name. The average bearer is 14 years old, and Onella peaked in popularity in 1921 with 7 births that year.
Below you will find a full statistical profile of Onella 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 Onella paired with any surname.
Key Insights
- Onella is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
12
About 1 in 28,562,862 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
14
years old
Peak Year
1921
7 births
Total Registered
48
since 1880
Gender Distribution for Onella
Onella is almost exclusively a female name. Out of 48 total births registered, 100.0% were female.
Onella as a female name
Ranked #15,452 in 2017
6 female births in 2017
Peak: 1921 (7 births)
Onella: Popularity Over Time
SSA records for Onella span from the 1910s to the 2010s, covering 4 decades of naming data. The most popular decade for this name was the 1920s, when 26 babies were registered. While Onella is less common than at its peak in the 1920s, it remains a well-established name with steady registrations.
Onella by Decade
How has Onella 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.
Onella + Last Name Combinations
How many people share a full name with Onella as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Onella
Other first names starting with O with a similar number of bearers.
Onella: Questions and Answers
How many people in the U.S. are named Onella?
We estimate approximately 12 people named Onella 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 28,562,862 Americans share this first name.
Is Onella a common name?
Onella is classified as "Very Rare" and is more popular than 32.3% of all first names in the SSA database. A total of 48 births have been registered with this name since 1880.
When was Onella most popular?
Onella reached peak popularity in 1921, when 7 babies were given this name. The average age of a living person named Onella is approximately 14 years old, reflecting when the name was most commonly given.
Is Onella a female name?
Onella is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Onella Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Onella Smith, Onella Johnson, Onella 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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