Aizen
Aizen was given to 199 boys in 2025, #1,081 among boys’ names; 1,934 Americans have been recorded with it since 2007 (Social Security Administration, published May 2026).
An estimated 1,920 Americans named Aizen and born in the U.S. are alive in 2026 (99% of everyone recorded); the median is 5 years old and half are between 3 and 10.
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Aizen by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Aizen?
#1,081 among boys’ names, 2025
Aizen rose from #1,848 in 2015 to #1,081 in 2025 among boys’ names; its share of boys born rose from 0.04 to 0.12 per 1,000.
223 babies in 2024, the peak
Aizen peaked in 2024, when 223 boys were given it, #1,005 among boys’ names. The 199 births of 2025 are 89% of that peak.
| Year | Births | Rank | Per 1,000 boys |
|---|---|---|---|
| 2025 | 199 | #1,081 | 0.12 |
| 2024 | 223 | #1,005 | 0.13 |
| 2023 | 190 | #1,111 | 0.11 |
| 2022 | 209 | #1,052 | 0.12 |
| 2021 | 152 | #1,253 | 0.09 |
| 2020 | 114 | #1,489 | 0.07 |
| 2019 | 111 | #1,523 | 0.06 |
| 2018 | 94 | #1,680 | 0.05 |
| 2017 | 106 | #1,541 | 0.06 |
| 2016 | 94 | #1,675 | 0.05 |
Every recorded year (19)
| Year | Births | Rank | Per 1,000 boys |
|---|---|---|---|
| 2015 | 80 | #1,848 | 0.04 |
| 2014 | 65 | #2,117 | 0.03 |
| 2013 | 71 | #1,942 | 0.04 |
| 2012 | 56 | #2,292 | 0.03 |
| 2011 | 68 | #1,998 | 0.04 |
| 2010 | 47 | #2,578 | 0.02 |
| 2009 | 27 | #3,832 | 0.01 |
| 2008 | 19 | #4,899 | 0.01 |
| 2007 | 9 | #8,183 | under 0.01 |
Ranks and shares: boys’ names in each year’s SSA file; share of all boys SSA recorded that year.
Is Aizen a boy’s or a girl’s name?
Aizen has been recorded only for boys: SSA lists no girls with the name in 19 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Aizen: the SSA national file counts each sex separately.
How many people are named Aizen, and how old are they?
1,920 alive in 2026, estimated
That is 99% of the 1,934 Americans ever recorded as Aizen. The median Aizen alive today is 5 years old; half are between 3 and 10.
Alive today, by age
Alive today, by generation
| Generation | Born | Alive |
|---|---|---|
| Generation Z | 1997-2012 | 224 |
| Generation Alpha | 2013-2025 | 1,700 |
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.
Where are babies named Aizen born?
The states with the most babies named Aizen are California, Texas and New York, with 61% of its births recorded by state in 2025.
| State | Births 2025 | Rank, boys | vs. national |
|---|---|---|---|
| California | 36 | #731 | 1.3× |
| Texas | 29 | #877 | 1.2× |
| New York | 21 | #692 | 0.8× |
| Florida | 16 | #888 | 0.9× |
| Arizona | 10 | #635 | 0.9× |
| Pennsylvania | 9 | #849 | 0.3× |
| Wisconsin | 6 | #679 | 0.6× |
| North Carolina | 5 | #1,280 | 0.6× |
| Minnesota | 5 | #813 | 0.7× |
| Virginia | 5 | #1,092 | 0.1× |
Where Aizen is more common than its national share predicts
Relative to its national share, Aizen is most over-represented in California: since 2007 it was given 1.3 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 Aizen 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 5 names spelled alike, given to 2,710 babies since 1880, Aizen is the most given (71% of them). In 2025 it was given to 199 of their 255 babies (78%), again the 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 Aizen
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 Aizen and names like it
- Compare Aizen and AzanBirths, ranks, peak and the living estimate side by side.
- The most given names of the 2020sAizen peaked in 2024.
- California’s most given namesThe state where SSA recorded the most babies named Aizen since 1910.
- The top names of 2024The year the most babies were named Aizen.
- The names of Generation AlphaMost people named Aizen alive today were born 2013-2025.
- Names starting with AMost given first.