How Many People Are Named Oneil?
people named Oneil are alive in the United States today (estimate)
About 1 in 331,186 people in the US has this name
Based on 1,774 babies named Oneil in Social Security records from 1892 to 2025, and the share of each birth year still alive in 2025.
Popularity Rank
💎💎 Very Rare
Peak Year
43 births
Trend
Stable (last 10 years)
⚧ Gender Distribution
All of the babies given the name Oneil in the records were boys. The share has stayed close to this since the 1910s: 9.4% of the babies were girls then and 0% in the 2010s.
👥 Age Distribution
The average person named Oneil alive today is about 39 years old, and 41% are under 30. Half of them were between 20 and 58 in 2025.
📈 Popularity Over Time
Oneil first appears in the records in 1892 and was given most often in 1924, to 43 babies. In 2025, 7 babies got the name.
Babies given the name each year, 1892 to 2025
🏆 Rank History
Oneil has never been one of the 100 most popular boys' names. Its best rank was #1,183, in 1924. In 2025 it ranked #10,401.
| Boys | |
|---|---|
| Rank in 2025 | #10,401 |
| Best rank | #1,183 (1924) |
| Years in the top 100 | None |
| Rank in its biggest decade | #1,448 in the 1920s |
📍 State-Wise Distribution
People named Oneil alive today, by the state where they were born (estimate; state records start in 1910).
More people named Oneil were born in New York than in any other state: about 171 of those alive today. Compared with the national rate in the same years, Oneil was given 22.4 times as often in Louisiana and 6.3 times in New York.
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