How Many People Are Named Osia?
An estimated 5 people in the United States have the first name Osia. It is almost exclusively a female name. The average bearer is 79 years old, and Osia peaked in popularity in 1920 with 8 births that year.
Below you will find a full statistical profile of Osia 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 Osia paired with any surname.
Key Insights
- With an average bearer age of 79, Osia is a vintage name most associated with earlier generations. Most living bearers were born before 1957.
- Osia is exceptionally rare. Fewer than 100 people with this name are estimated to be alive in the U.S. today.
Estimated Living Americans
5
About 1 in 68,550,868 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
79
years old
Peak Year
1920
8 births
Total Registered
30
since 1880
Gender Distribution for Osia
Osia is almost exclusively a female name. Out of 30 total births registered, 100.0% were female.
Osia as a female name
Ranked #6,012 in 1951
5 female births in 1951
Peak: 1920 (8 births)
Osia: Popularity Over Time
SSA records for Osia span from the 1910s to the 1950s, covering 4 decades of naming data. The most popular decade for this name was the 1930s, when 10 babies were registered. While Osia is less common than at its peak in the 1930s, it remains a well-established name with steady registrations.
Osia by Decade
How has Osia 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.
Osia + Last Name Combinations
How many people share a full name with Osia as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Osia
Other first names starting with O with a similar number of bearers.
Osia: Questions and Answers
How many people in the U.S. are named Osia?
We estimate approximately 5 people named Osia 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 68,550,868 Americans share this first name.
Is Osia a common name?
Osia is classified as "Very Rare" and is more popular than 18.2% of all first names in the SSA database. A total of 30 births have been registered with this name since 1880.
When was Osia most popular?
Osia reached peak popularity in 1920, when 8 babies were given this name. The average age of a living person named Osia is approximately 79 years old, reflecting when the name was most commonly given.
Is Osia a female name?
Osia is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Osia Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Osia Smith, Osia Johnson, Osia 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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