Total births
87
Boys' name · since 1918
Oneill
87 babies named Oneill in U.S. Social Security records since 1918, with the highest year being 2010. Year-by-year trend, decade aggregates, and state-level rankings drawn from federal birth data.
- 87
- total births
- 1918–2017
- years on record
- 1980s
- peak decade
- 30%
- born in that decade
87 boys have been named Oneill since 1918, though it isn't currently a top-ranked name.
Oneill has 87 recorded births among boys since 1918, per the U.S. Social Security Administration, though it falls outside today's most-used boys names, busiest in the 1980s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1918 to 2017.
- 87 total births
- 1918–2017 years on record
- 1980s peak decade
- 30% born in that decade
Data updated Jun 2026
The verdict
87 boys have been named Oneill since 1918, peaking in the 1980s, last recorded in 2017.
- 87
- total births
- 1918–2017
- years on record
- 1980s
- peak decade
- 30%
- born in that decade
1980s
Peak decade
30% of everyone ever named Oneill was born in this single decade.
2010
Single peak year
8 babies were named Oneill in 2010 - its busiest year on record.
Oneill's usage pattern, beyond the headline number
Splitting Oneill's full recorded timeline at 1988, 53% of its total births fall in the more recent half of the record versus 47% in the earlier half -- a fairly even split across the full record. Its quietest year on record was 1918, with just 5 recorded births -- worth weighing against the 2010 peak of 8 to see the full range of the name's swing in popularity.
Oneill at a glance
Last recorded 2017Peak year
2010
Current rank
Unranked
Active since
1918
Oneill popularity over time
Annual U.S. births registered with the Social Security Administration · 1918–2017
- Peak year (2010)
- 8
- Annual births at peak, across 100 years of records
Oneill by decade
Total births in each ten-year window, peak vs trough at a glance
1980s was Oneill's strongest decade.
26 babies received the name during that ten-year window, about 30% of all-time use.
Oneill births by decade
Total births in each ten-year window
- 1910s 5
1910s
5 births
- 1920s 6
1920s
6 births
- 1930s 10
1930s
10 births
- 1940s 5
1940s
5 births
- 1980s
1980s
26 births
- 1990s 5
1990s
5 births
- 2000s 6
2000s
6 births
- 2010s
2010s
24 births
What this shows Peak: 1980s at 26 births (30% of all-time use).
Frequently Asked Questions
How popular is the name Oneill? ▼
Since 1918, Social Security records show 87 babies named Oneill. The most recent recorded year was 2017. Its busiest year on record was 2010, with 8 births.
When was Oneill most popular? ▼
Oneill was most popular in the 1980s decade with 26 total births. The single peak year was 2010.
How long has the name Oneill been used? ▼
Oneill has been recorded in Social Security data since 1918, spanning 100 years of data through 2017.
What names are similar to Oneill? ▼
Names with a similar sound or spelling include Oneal, Oneil, Onesimo, Oney, and 4 more. These share a common prefix and are also used for boys.
What to do with Oneill's data
- Oneill's usage has stayed within range of its 1980s decade-level peak (26 total births) through the 2010s (24) -- a comparatively stable name, not a fading trend.
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Oneill
Nearby Names Like Oneill
Names with a similar sound, spelling, or feel to Oneill
Oneal Boy
#6489 3,049 births
Oneil Boy
#8342 1,757 births
Onesimo Boy
594 births
Oney Boy
109 births
Onesimus Boy
50 births
Compare Oneill side by side: Oneill vs Oneal Oneill vs Oneil Oneill vs Onesimo
Related Names
Names with a similar number of total births
Data Sources
Data as of June 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, 1918–2017 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Oneill: Baby Name Since 1918 - 87 Births, Peak 2010." NameAlmanac. Accessed via https://namealmanac.com/name/oneill. Licensed CC BY-SA 4.0.
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 Oneill 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 June 2026.