How Many People Are Named Oanh?
An estimated 224 people in the United States have the first name Oanh. It is almost exclusively a female name. The average bearer is 40 years old, and Oanh peaked in popularity in 1981 with 23 births that year.
Below you will find a full statistical profile of Oanh 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 Oanh paired with any surname.
Estimated Living Americans
224
About 1 in 1,530,153 people in the U.S.
Rarity
Very Rare
Predicted Gender
Female
100.0% confidence
Average Age
40
years old
Peak Year
1981
23 births
Total Registered
237
since 1880
Gender Distribution for Oanh
Oanh is almost exclusively a female name. Out of 237 total births registered, 100.0% were female.
Oanh as a female name
Ranked #17,414 in 2002
5 female births in 2002
Peak: 1981 (23 births)
Oanh: Popularity Over Time
SSA records for Oanh span from the 1970s to the 2000s, covering 4 decades of naming data. The most popular decade for this name was the 1980s, when 154 babies were registered. Oanh has declined significantly from its peak in the 1980s. Recent registrations are a fraction of what they were at the name's height.
Oanh by Decade
How has Oanh 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.
Oanh by State
Oanh + Last Name Combinations
How many people share a full name with Oanh as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Oanh
Other first names starting with O with a similar number of bearers.
Oanh: Questions and Answers
How many people in the U.S. are named Oanh?
We estimate approximately 224 people named Oanh 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 1,530,153 Americans share this first name.
Is Oanh a common name?
Oanh is classified as "Very Rare" and is more popular than 75.6% of all first names in the SSA database. A total of 237 births have been registered with this name since 1880.
When was Oanh most popular?
Oanh reached peak popularity in 1981, when 23 babies were given this name. The average age of a living person named Oanh is approximately 40 years old, reflecting when the name was most commonly given.
Is Oanh a female name?
Oanh is predominantly female. 100.0% of people with this name are female. See the gender breakdown above for full details.
How many Oanh Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Oanh Smith, Oanh Johnson, Oanh 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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