Boys' name · since 1892

Oneil

Since 1892, U.S. Social Security records show 1,757 babies named Oneil, peaking in 1924. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.

#3,573 of 45,481
all-time among boys
#9,745 of 13,930
2025 SSA year
1,757
born since 1892
1920s
peak decade

Oneil currently ranks #9745 among boys' names in America, with 1,757 babies recorded since 1892.

Social Security Administration records show Oneil recorded 1,757 times among boys since 1892, holding rank #9745 nationally today, ahead of 30% of boys, peaking in the 1920s. This profile derives year-by-year birth trends, decade totals, and state-level distribution directly from SSA birth-registration files spanning 1892 to 2025.

  • #3,573 of 45,481 all-time among boys
  • #9,745 of 13,930 2025 SSA year
  • 1,757 born since 1892
  • 1920s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Oneil ranks #3,573 of 45,481 boys' names by all-time recorded births (highest first) and #9,745 of 13,930 among boys' names in 2025. 1,757 born since 1892, peaking in the 1920s.

#3,573 of 45,481
all-time among boys
#9,745 of 13,930
2025 SSA year
1,757
born since 1892
1920s
peak decade
0%100%Median name50%30%
Oneil vs. every other boys name in current SSA rankings
Above the archive median
All-time archive position

Oneil's 1,757 recorded births place it above 92.14% of the 45,481 boys names in the full SSA archive.

6 jurisdictions
State-record footprint

6 jurisdictions carry state-level records, led by New York.

How Oneil compares

1,757 Top 24% higher than 76% of 13,930 names currently given to boys

Based on all-time total births among currently-ranked boys names. Names with fewer occurrences are grouped into wider buckets on the right.

Source U.S. Social Security Administration, national baby name data

How the numbers stack up

Oneil's all-time total is 5x the median boys name, and Liam still leads by a wide margin.

Metric Oneil Median boys name (Takari) #1 boys name (Liam)
All-time total births 1,757 369 358,536
Peak-year births 38 34 22,252

Oneil's usage pattern, beyond the headline number

Divide Oneil's SSA record in two at 1967 and the more recent half accounts for 46% of all births, the earlier half the remaining 54%, a genuinely balanced usage pattern. Its calmest year was 1892, with only 5 births recorded -- set against the 1924 peak of 38, that's the full swing in one name's fortunes.

Oneil popularity over time - boys

Annual U.S. births registered with the Social Security Administration · 1892–2025

Outside the top 1,000
Peak year (1924)
38
Annual births at peak, across 134 years of records
010203040 189219251940195519721988200320182025 7

Oneil popularity over time - girls

17 total births recorded since 1915 (Oneil as girls' name)

Unisex variant - 17 births
4.555.566.577.5 191519181924 5

Oneil by decade

1920s is the heaviest window (264 births, 15% of the file).

1920s was Oneil's strongest decade.

264 babies received the name during that ten-year window, about 15% of all-time use.

Oneil births by decade

Total births in each ten-year window

births

What this shows Peak: 1920s at 264 births (15% of all-time use).

Source U.S. Social Security Administration · Baby Names As of August 2026

How Oneil compares to similarly-sized names

Years in SSA records vs. share of all-time use concentrated in the single peak year, among 15 boys names closest to Oneil's total volume

Oneil vs 15 similarly-sized boys names Scatter plot of 16 data points. 0%5%10%15% 050100150200 New & already peakedOld name, single-era peakNew & still diversifyingLong history, steady all along Years in SSA records % of total births in the single peak year -51, 10.2%-29, 7.9%-57, 3.9%-61, 4.2%-146, 2.2%-52, 3.5%-44, 5.6%-146, 2.7%-144, 2.2%-69, 4.4%-111, 2.1%-43, 5.8%-26, 8.6%-44, 4.6%-113, 13%Oneil-134, 2.2%Oneil
Oneil vs 15 similarly-sized boys names

Oneil by state

Where Oneil concentrates geographically, total births since 1892

Geographically diffuse
Top 6 states by recorded births for the name Oneil
Rank State Visual share Births Share of total
#1 New York
177 10.1%
#2 Louisiana
144 8.2%
#3 South Carolina
15 0.9%
#4 Florida
12 0.7%
#5 Maine
6 0.3%
#6 North Carolina
5 0.3%
New York share of Oneil's total US births 10.1%
Even split

177 of 1,757 births nationwide. Compared to a flat distribution across 6 reporting states.

Frequently Asked Questions

How popular is the name Oneil?
1,757 babies have been named Oneil since 1892. All-time, it sits at #3,573 of 45,481 boys' names by recorded births. In 2025, it ranks #9,745 of 13,930 among boys. The peak year was 1924 with 38 births.
Where does Oneil sit in the SSA name archive?
According to the U.S. Social Security Administration, Oneil ranks #3,573 of 45,481 boys' names by all-time recorded births (highest first) and #9,745 of 13,930 among boys' names in 2025. All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the 2025 SSA file. See /methodology#corpus-placement.
When was Oneil most popular?
Oneil was most popular in the 1920s decade with 264 total births. The single peak year was 1924.
Where is Oneil most popular?
The top states for the name Oneil are New York (177 births), Louisiana (144 births), South Carolina (15 births).
How long has the name Oneil been used?
The SSA has tracked Oneil since 1892 -- 134 years through the most recent 2025 data.
What names are similar to Oneil?
Names with a similar sound or spelling include Oneal, Onesimo, Oney, Oneill, and 4 more. These share a common prefix and are also used for boys.

What to do with Oneil's data

  • Oneil's decade-level peak was the 1920s (264 total births); usage has since declined to 46 in the 2020s -- if you're weighing a "classic revival" angle, the trend line argues against it.
  • New York records the most Oneils (177 births) -- see the full state breakdown if geography matters to your decision. New York names

Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.

Keep exploring Oneil

Nearby Names Like Oneil

Names with a similar sound, spelling, or feel to Oneil

Names with a similar popularity rank to Oneil

Nationwide names with similar peak year or record span

Two nationwide peer axes for Oneil: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.

Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.

Data Sources

Data as of August 2026. Source: U.S. Social Security Administration (SSA).

According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.

Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1892–2025 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Oneil draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.