How Many People Are Named Oona?
An estimated 1,664 people in the United States have the first name Oona. It is almost exclusively a female name. The average bearer is 17 years old, and Oona peaked in popularity in 2015 with 131 births that year.
Below you will find a full statistical profile of Oona 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 Oona paired with any surname.
Key Insights
- Oona is a modern name. With an average bearer age of just 17, it has gained most of its popularity in recent years.
Estimated Living Americans
1,664
About 1 in 205,982 people in the U.S.
Rarity
Rare
Predicted Gender
Female
100.0% confidence
Average Age
17
years old
Peak Year
2015
131 births
Total Registered
1,712
since 1880
Gender Distribution for Oona
Oona is almost exclusively a female name. Out of 1,712 total births registered, 100.0% were female.
Oona as a female name
Ranked #2,474 in 2024
73 female births in 2024
Peak: 2015 (131 births)
Oona: Popularity Over Time
SSA records for Oona span from the 1940s to the 2020s, covering 9 decades of naming data. The most popular decade for this name was the 2010s, when 718 babies were registered. While Oona is less common than at its peak in the 2010s, it remains a well-established name with steady registrations.
Oona by Decade
How has Oona 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.
Oona by State
Birth registrations for Oona span all 15 states and territories in the SSA database. The highest counts are in California, New York, Washington. The lowest are in Utah, Ohio, North Carolina. On average, about 42 Oonas were registered per state.
Oona + Last Name Combinations
How many people share a full name with Oona as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Oona
Other first names starting with O with a similar number of bearers.
Oona: Questions and Answers
How many people in the U.S. are named Oona?
We estimate approximately 1,664 people named Oona 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 205,982 Americans share this first name.
Is Oona a common name?
Oona is classified as "Rare" and is more popular than 92.9% of all first names in the SSA database. A total of 1,712 births have been registered with this name since 1880.
When was Oona most popular?
Oona reached peak popularity in 2015, when 131 babies were given this name. The average age of a living person named Oona is approximately 17 years old, reflecting when the name was most commonly given.
Is Oona a female name?
Oona is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Oona Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Oona Smith, Oona Johnson, Oona 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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