Oneil
Oneil was given to 7 boys in 2025, #10,401 among boys’ names; 1,774 Americans have been recorded with it since 1892 (Social Security Administration, published May 2026).
An estimated 1,020 Americans named Oneil and born in the U.S. are alive in 2026 (58% of everyone recorded); the median is 34 years old and half are between 21 and 57.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Oneil by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Oneil?
#10,401 among boys’ names, 2025
Oneil fell from #8,531 in 2015 to #10,401 in 2025 among boys’ names; its share of boys born fell from 4.7 to 4.1 per million.
43 babies in 1924, the peak
Oneil peaked in 1924, when 43 babies were given it (38 boys, #1,183 among boys’ names). The 7 births of 2025 are 16% of that peak.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 7 | #10,401 | 4.1 |
| 2024 | 9 | #8,799 | 5.2 |
| 2023 | 8 | #9,518 | 4.7 |
| 2022 | 8 | #9,601 | 4.6 |
| 2021 | 6 | #11,762 | 3.4 |
| 2020 | 8 | #9,317 | 4.6 |
| 2019 | 11 | #7,492 | 6.1 |
| 2018 | 13 | #6,601 | 7.2 |
| 2017 | 14 | #6,248 | 7.6 |
| 2016 | 14 | #6,259 | 7.4 |
Every recorded year (113)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2015 | 9 | #8,531 | 4.7 |
| 2014 | 11 | #7,406 | 5.7 |
| 2013 | 5 | #13,533 | 2.6 |
| 2012 | 22 | #4,490 | 11.6 |
| 2011 | 13 | #6,483 | 6.8 |
| 2010 | 13 | #6,604 | 6.8 |
| 2009 | 14 | #6,334 | 7.1 |
| 2008 | 17 | #5,420 | 8.3 |
| 2007 | 24 | #4,213 | 11.6 |
| 2006 | 20 | #4,635 | 9.7 |
| 2005 | 16 | #5,207 | 8.0 |
| 2004 | 22 | #4,093 | 11.1 |
| 2003 | 18 | #4,565 | 9.1 |
| 2002 | 17 | #4,645 | 8.8 |
| 2001 | 22 | #3,809 | 11.3 |
| 2000 | 19 | #4,164 | 9.7 |
| 1999 | 13 | #5,243 | 6.8 |
| 1998 | 20 | #3,671 | 10.5 |
| 1997 | 11 | #5,550 | 5.8 |
| 1996 | 26 | #2,884 | 13.7 |
| 1995 | 27 | #2,732 | 14.2 |
| 1994 | 15 | #4,228 | 7.8 |
| 1993 | 28 | #2,622 | 14.3 |
| 1992 | 23 | #2,969 | 11.5 |
| 1991 | 15 | #3,953 | 7.4 |
| 1990 | 20 | #3,130 | 9.7 |
| 1989 | 19 | #3,170 | 9.5 |
| 1988 | 16 | #3,304 | 8.4 |
| 1987 | 19 | #2,796 | 10.2 |
| 1986 | 23 | #2,404 | 12.5 |
| 1985 | 12 | #3,743 | 6.5 |
| 1984 | 9 | #4,444 | 5.0 |
| 1983 | 13 | #3,370 | 7.3 |
| 1982 | 8 | #4,876 | 4.4 |
| 1981 | 10 | #4,069 | 5.6 |
| 1980 | 20 | #2,505 | 11.2 |
| 1979 | 17 | #2,743 | 9.9 |
| 1978 | 13 | #3,178 | 7.9 |
| 1977 | 9 | #4,068 | 5.5 |
| 1976 | 6 | #5,419 | 3.8 |
| 1975 | 9 | #3,854 | 5.8 |
| 1974 | 7 | #4,494 | 4.5 |
| 1972 | 6 | #4,811 | 3.7 |
| 1971 | 8 | #3,860 | 4.5 |
| 1970 | 8 | #3,739 | 4.3 |
| 1969 | 12 | #2,648 | 6.7 |
| 1967 | 12 | #2,436 | 6.9 |
| 1966 | 9 | #2,919 | 5.0 |
| 1965 | 8 | #3,172 | 4.3 |
| 1963 | 12 | #2,501 | 5.9 |
| 1962 | 8 | #3,228 | 3.9 |
| 1961 | 16 | #2,121 | 7.5 |
| 1960 | 8 | #3,260 | 3.8 |
| 1959 | 13 | #2,381 | 6.1 |
| 1958 | 18 | #1,940 | 8.5 |
| 1957 | 8 | #3,186 | 3.7 |
| 1956 | 12 | #2,456 | 5.7 |
| 1955 | 16 | #2,024 | 7.8 |
| 1954 | 11 | #2,559 | 5.4 |
| 1953 | 13 | #2,257 | 6.6 |
| 1952 | 21 | #1,691 | 10.8 |
| 1951 | 13 | #2,220 | 6.9 |
| 1950 | 17 | #1,860 | 9.5 |
| 1949 | 16 | #1,921 | 9.0 |
| 1948 | 16 | #1,923 | 9.1 |
| 1947 | 23 | #1,583 | 12.6 |
| 1946 | 20 | #1,631 | 12.3 |
| 1945 | 18 | #1,612 | 13.4 |
| 1944 | 8 | #2,794 | 5.9 |
| 1943 | 18 | #1,747 | 12.6 |
| 1942 | 15 | #1,925 | 10.9 |
| 1941 | 16 | #1,807 | 13.0 |
| 1940 | 21 | #1,512 | 18.1 |
| 1939 | 14 | #1,940 | 12.6 |
| 1938 | 22 | #1,464 | 19.8 |
| 1937 | 14 | #1,971 | 13.1 |
| 1936 | 13 | #2,036 | 12.5 |
| 1935 | 22 | #1,478 | 21.1 |
| 1934 | 15 | #1,910 | 14.5 |
| 1933 | 20 | #1,576 | 20.2 |
| 1932 | 24 | #1,456 | 23.0 |
| 1931 | 24 | #1,447 | 23.1 |
| 1930 | 17 | #1,874 | 15.5 |
| 1929 | 33 | #1,233 | 30.7 |
| 1928 | 26 | #1,476 | 23.5 |
| 1927 | 25 | #1,546 | 22.2 |
| 1926 | 13 | #2,389 | 11.7 |
| 1925 | 29 | #1,386 | 26.0 |
| 1924 | 38 | #1,183 | 33.5 |
| 1923 | 33 | #1,269 | 30.1 |
| 1922 | 26 | #1,495 | 23.9 |
| 1921 | 18 | #1,962 | 16.3 |
| 1920 | 23 | #1,631 | 21.6 |
| 1919 | 17 | #1,947 | 17.3 |
| 1918 | 17 | #1,971 | 16.8 |
| 1917 | 18 | #1,792 | 19.4 |
| 1916 | 11 | #2,496 | 12.4 |
| 1915 | 20 | #1,588 | 23.6 |
| 1914 | 10 | #2,224 | 15.3 |
| 1913 | 6 | #2,711 | 11.7 |
| 1912 | 11 | #1,594 | 25.6 |
| 1910 | 5 | #1,777 | 25.7 |
| 1892 | 5 | #1,204 | 41.0 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Oneil a boy’s or a girl’s name?
Oneil has been given almost only to boys: 17 girls in 113 years of records.
Girls and boys named Oneil: the SSA national file counts each sex separately.
How many people are named Oneil, and how old are they?
1,020 alive in 2026, estimated
That is 58% of the 1,774 Americans ever recorded as Oneil. The median Oneil alive today is 34 years old; half are between 21 and 57.
The 2020 Census counted 2,022 people named Oneil (55 women and girls, 1,967 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 1,067 born in the U.S. The Census count is 1.9 times that prediction. Possible reasons: the Census counts people born abroad, whom SSA’s files leave out, and it records the name people give, which SSA may have recorded under another spelling or as part of a compound name.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Silent Generation | 1928-1945 | 57 |
| Baby Boomers | 1946-1964 | 165 |
| Generation X | 1965-1980 | 128 |
| Millennials | 1981-1996 | 270 |
| Generation Z | 1997-2012 | 276 |
| Generation Alpha | 2013-2025 | 122 |
An estimate, not a count. SSA’s files count people born in the United States who received a Social Security number, so anyone born abroad is not in them; before 1937 most people got a number as adults, and their survival is counted from that age.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Where are babies named Oneil born?
The states with the most babies named Oneil are New York, Louisiana and South Carolina, with 94% of its births recorded by state since 1910; Louisiana and South Carolina are not among the ten states with the most births.
| State | Since 1910 | Rank, boys | vs. national |
|---|---|---|---|
| New York | 177 | not ranked | 1.2× |
| Louisiana | 144 | not ranked | 4.2× |
| South Carolina | 15 | not ranked | 0.5× |
| Florida | 12 | not ranked | 0.2× |
| Maine | 6 | not ranked | 0.6× |
| North Carolina | 5 | not ranked | 0.1× |
Where Oneil is more common than its national share predicts
Relative to its national share, Oneil is most over-represented in Louisiana: since 1910 it was given 4.2 times as often there as its national share each year would predict.
States: SSA state file, 1910-2025, published May 8, 2026; births count girls and boys together, and the rank is among boys’ names in the state in 2025. The file leaves out any state and year with fewer than 5 babies of the name, so small states are undercounted; each ratio compares the state’s births of Oneil with the births its national share predicts year by year, for states with at least 100 births of the name.
Names spelled alike
Of these 4 names spelled alike, given to 5,294 babies since 1880, Oneil is the second most given (34% of them). In 2025 it was given to 7 of their 21 babies (33%), again the second most given.
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Oneil
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Oneil and names like it
- Compare Oneil and OnealBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1920sOneil peaked in 1924.
- New York’s most given namesThe state where SSA recorded the most babies named Oneil since 1910.
- The top names of 1924The year the most babies were named Oneil.
- The names of Generation ZMost people named Oneil alive today were born 1997-2012.
- Names starting with OMost given first.