Oneil is a rare boys' name that peaked in 1924 and has since faded.
Oneil is predominantly a boy name. In 2025 it ranked #10,405 for boy births in the United States (and #21,473 across all names), given to 7 babies. Oneil was first reported in SSA data in 1892 and peaked in 1924 (38 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 7 | 7 | — | #10,405 |
| 2024 | 9 | 9 | — | #8,804 |
| 2023 | 8 | 8 | — | #9,523 |
| 2022 | 8 | 8 | — | #9,606 |
| 2021 | 6 | 6 | — | #11,768 |
| 2020 | 8 | 8 | — | #9,322 |
| 2019 | 11 | 11 | — | #7,497 |
| 2018 | 13 | 13 | — | #6,605 |
| 2017 | 14 | 14 | — | #6,252 |
| 2016 | 14 | 14 | — | #6,264 |
| 2015 | 9 | 9 | — | #8,536 |
| 2014 | 11 | 11 | — | #7,411 |
| 2013 | 5 | 5 | — | #13,541 |
| 2012 | 22 | 22 | — | #4,493 |
| 2011 | 13 | 13 | — | #6,489 |
| 2010 | 13 | 13 | — | #6,610 |
| 2009 | 14 | 14 | — | #6,338 |
| 2008 | 17 | 17 | — | #5,425 |
| 2007 | 24 | 24 | — | #4,215 |
| 2006 | 20 | 20 | — | #4,639 |
| 2005 | 16 | 16 | — | #5,212 |
| 2004 | 22 | 22 | — | #4,098 |
| 2003 | 18 | 18 | — | #4,570 |
| 2002 | 17 | 17 | — | #4,651 |
| 2001 | 22 | 22 | — | #3,814 |
| 2000 | 19 | 19 | — | #4,170 |
| 1999 | 13 | 13 | — | #5,249 |
| 1998 | 20 | 20 | — | #3,675 |
| 1997 | 11 | — | — | #5,556 |
| 1996 | 26 | — | — | #2,889 |
| 1995 | 27 | — | — | #2,737 |
| 1994 | 15 | — | — | #4,234 |
| 1993 | 28 | — | — | #2,628 |
| 1992 | 23 | — | — | #2,975 |
| 1991 | 15 | — | — | #3,960 |
| 1990 | 20 | — | — | #3,136 |
| 1989 | 19 | — | — | #3,176 |
| 1988 | 16 | — | — | #3,309 |
| 1987 | 19 | — | — | #2,800 |
| 1986 | 23 | — | — | #2,406 |
| 1985 | 12 | — | — | #3,746 |
| 1984 | 9 | — | — | #4,447 |
| 1983 | 13 | — | — | #3,371 |
| 1982 | 8 | — | — | #4,878 |
| 1981 | 10 | — | — | #4,071 |
| 1980 | 20 | — | — | #2,506 |
| 1979 | 17 | — | — | #2,744 |
| 1978 | 13 | — | — | #3,179 |
| 1977 | 9 | — | — | #4,070 |
| 1976 | 6 | — | — | #5,421 |
| 1975 | 9 | — | — | #3,856 |
| 1974 | 7 | — | — | #4,496 |
| 1972 | 6 | — | — | #4,813 |
| 1971 | 8 | — | — | #3,862 |
| 1970 | 8 | — | — | #3,741 |
| 1969 | 12 | — | — | #2,649 |
| 1967 | 12 | — | — | #2,437 |
| 1966 | 9 | — | — | #2,920 |
| 1965 | 8 | — | — | #3,173 |
| 1963 | 12 | — | — | #2,502 |
| 1962 | 8 | — | — | #3,229 |
| 1961 | 16 | — | — | #2,122 |
| 1960 | 8 | — | — | #3,261 |
| 1959 | 13 | — | — | #2,382 |
| 1958 | 18 | — | — | #1,941 |
| 1957 | 8 | — | — | #3,187 |
| 1956 | 12 | — | — | #2,457 |
| 1955 | 16 | — | — | #2,025 |
| 1954 | 11 | — | — | #2,560 |
| 1953 | 13 | — | — | #2,258 |
| 1952 | 21 | — | — | #1,692 |
| 1951 | 13 | — | — | #2,221 |
| 1950 | 17 | — | — | #1,861 |
| 1949 | 16 | — | — | #1,922 |
| 1948 | 16 | — | — | #1,924 |
| 1947 | 23 | — | — | #1,584 |
| 1946 | 20 | — | — | #1,632 |
| 1945 | 18 | — | — | #1,613 |
| 1944 | 8 | — | — | #2,795 |
| 1943 | 18 | — | — | #1,748 |
| 1942 | 15 | — | — | #1,925 |
| 1941 | 16 | — | — | #1,807 |
| 1940 | 21 | — | — | #1,512 |
| 1939 | 14 | — | — | #1,940 |
| 1938 | 22 | — | — | #1,464 |
| 1937 | 14 | — | — | #1,971 |
| 1936 | 13 | — | — | #2,036 |
| 1935 | 22 | — | — | #1,478 |
| 1934 | 15 | — | — | #1,910 |
| 1933 | 20 | — | — | #1,576 |
| 1932 | 24 | — | — | #1,456 |
| 1931 | 24 | — | — | #1,447 |
| 1930 | 17 | — | — | #1,874 |
| 1929 | 33 | — | — | #1,233 |
| 1928 | 26 | — | — | #1,476 |
| 1927 | 25 | — | — | #1,546 |
| 1926 | 13 | — | — | #2,389 |
| 1925 | 29 | — | — | #1,386 |
| 1924 | 43 | — | #5,683 | #1,183 |
| 1923 | 33 | — | — | #1,269 |
| 1922 | 26 | — | — | #1,495 |
| 1921 | 18 | — | — | #1,963 |
| 1920 | 23 | — | — | #1,631 |
| 1919 | 17 | — | — | #1,948 |
| 1918 | 24 | — | #4,176 | #1,972 |
| 1917 | 18 | — | — | #1,793 |
| 1916 | 11 | — | — | #2,497 |
| 1915 | 25 | — | #4,791 | #1,589 |
| 1914 | 10 | — | — | #2,225 |
| 1913 | 6 | — | — | #2,712 |
| 1912 | 11 | — | — | #1,595 |
| 1910 | 5 | — | — | #1,778 |
| 1892 | 5 | — | — | #1,205 |