How Many People Are Named Olwen?
An estimated 5 people in the United States have the first name Olwen. It is almost exclusively a female name. The average bearer is 13 years old, and Olwen peaked in popularity in 1917 with 12 births that year.
Below you will find a full statistical profile of Olwen 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 Olwen paired with any surname.
Key Insights
- Olwen 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
13
years old
Peak Year
1917
12 births
Total Registered
27
since 1880
Gender Distribution for Olwen
Olwen is almost exclusively a female name. Out of 27 total births registered, 100.0% were female.
Olwen as a female name
Ranked #17,519 in 2018
5 female births in 2018
Peak: 1917 (12 births)
Olwen: Popularity Over Time
SSA records for Olwen span from the 1910s to the 2010s, covering 2 decades of naming data. The most popular decade for this name was the 1910s, when 22 babies were registered. Olwen has declined significantly from its peak in the 1910s. Recent registrations are a fraction of what they were at the name's height.
Olwen by Decade
How has Olwen 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.
Olwen + Last Name Combinations
How many people share a full name with Olwen as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Olwen
Other first names starting with O with a similar number of bearers.
Olwen: Questions and Answers
How many people in the U.S. are named Olwen?
We estimate approximately 5 people named Olwen 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 Olwen a common name?
Olwen is classified as "Very Rare" and is more popular than 18.2% of all first names in the SSA database. A total of 27 births have been registered with this name since 1880.
When was Olwen most popular?
Olwen reached peak popularity in 1917, when 12 babies were given this name. The average age of a living person named Olwen is approximately 13 years old, reflecting when the name was most commonly given.
Is Olwen a female name?
Olwen is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Olwen Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Olwen Smith, Olwen Johnson, Olwen 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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