Onix
Onix is given to both girls and boys: 6 girls and 22 boys were given it in 2025 (#14,478 among girls’ names and #4,660 among boys’, #8,394 among all names counting both); 383 Americans have been recorded with it since 1956 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Onix by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Onix?
#4,660 among boys’ names, 2025
Onix rose from #11,716 in 2015 to #4,660 in 2025 among boys’ names; its share of boys born rose from 3.1 to 12.9 per million.
33 babies in 2022, the peak
Onix peaked in 2022, when 33 babies were given it (27 boys, #4,061 among boys’ names). The 28 births of 2025 (girls and boys) are 85% of that peak.
Births by sex.
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2025 | 22 | #4,660 | 12.9 |
| 2024 | 18 | #5,385 | 10.4 |
| 2023 | 29 | #3,855 | 17.0 |
| 2022 | 27 | #4,061 | 15.5 |
| 2021 | 25 | #4,194 | 14.3 |
| 2020 | 13 | #6,534 | 7.5 |
| 2019 | 9 | #8,688 | 5.0 |
| 2018 | 11 | #7,480 | 6.1 |
| 2017 | 12 | #6,991 | 6.5 |
| 2016 | 13 | #6,618 | 6.9 |
Every recorded year (37)
| Year | Births | Rank | Per million boys |
|---|---|---|---|
| 2015 | 6 | #11,716 | 3.1 |
| 2014 | 11 | #7,407 | 5.7 |
| 2013 | 8 | #9,421 | 4.2 |
| 2012 | 10 | #7,969 | 5.3 |
| 2011 | 5 | #13,773 | 2.6 |
| 2010 | 8 | #9,436 | 4.2 |
| 2009 | 7 | #10,665 | 3.5 |
| 2007 | 10 | #8,007 | 4.8 |
| 2006 | 7 | #10,354 | 3.4 |
| 2005 | 9 | #8,115 | 4.5 |
| 2003 | 8 | #8,409 | 4.0 |
| 2002 | 5 | #11,968 | 2.6 |
| 2001 | 6 | #10,181 | 3.1 |
| 1999 | 6 | #9,552 | 3.1 |
| 1997 | 5 | #10,365 | 2.7 |
| 1996 | 10 | #5,850 | 5.3 |
| 1994 | 6 | #8,509 | 3.1 |
| 1993 | 6 | #8,388 | 3.1 |
| 1991 | 5 | #9,207 | 2.5 |
| 1985 | 5 | #7,292 | 2.7 |
| 1981 | 5 | #6,989 | 2.8 |
| 1980 | 6 | #6,029 | 3.4 |
| 1979 | 9 | #4,306 | 5.2 |
| 1968 | 5 | #4,572 | 2.9 |
| 1967 | 7 | #3,460 | 4.0 |
| 1966 | 10 | #2,741 | 5.6 |
| 1956 | 7 | #3,442 | 3.3 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Onix a boy’s or a girl’s name?
Of the 383 Americans recorded as Onix, 3% are girls and 97% boys.
Years with fewer than 20 babies given the name are left blank.
Girls and boys named Onix: the SSA national file counts each sex separately.
How many people are named Onix, and how old are they?
An estimated 372 Americans named Onix and born in the U.S. are alive in 2026 (97% of everyone recorded); the median is 10 years old and half are between 4 and 24. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 629 people named Onix (129 women and girls, 500 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 233 born in the U.S. The Census count is 2.7 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.
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).
How common is the spelling Onix?
Onix is a less common spelling of Onyx: SSA has recorded 383 Onix and 8,632 Onyx since 1880.
Of these 3 names spelled alike, given to 9,156 babies since 1880, Onix is the second most given (4.2% of them). In 2025 it was given to 28 of their 1,087 babies (2.6%), 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 Onix
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 Onix and names like it
- Compare Onix and OnyxBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sOnix peaked in 2022.
- New York’s most given namesThe state where SSA recorded the most babies named Onix since 1910.
- The top names of 2022The year the most babies were named Onix.
- The names of Generation AlphaMost people named Onix alive today were born 2013-2025.
- Names starting with OMost given first.