Aizen
Boy name · #1083 in 2025 · Rare
How old is the name Aizen? In official American birth records, Aizen has been tracked continuously since 2007, giving it 18 years of documented American history.
In 2025, 199 baby boys were named Aizen, placing it at #1083 in the official national rankings. A decade ago it stood at #1846, so the name has been rising over the past ten years. Roughly one in every 9,045 boys born in 2025 was named Aizen.
The 18-year story
Aizen first appears in the Social Security records in 2007, when 9 boys received the name. Its all-time peak is essentially right now: 2024, with 223 babies and a rank of #1005. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Aizen per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Aizen against up to 5 other names.
Uniqueness: will there be another Aizen in class?
On our rarity read — which blends how common Aizen is today with its five-year momentum — the name reads as "rare". A high score means genuine rarity — your Aizen will likely be the only one in the room, with the occasional spelling-out as the price.
Where Aizen is most common
Geography matters for names, and Aizen is no exception. Adjusted for how many boys are born in each state, Aizen is most common in AZ (0.3 per 1,000), NY (0.2 per 1,000), CA (0.2 per 1,000), FL (0.2 per 1,000), TX (0.2 per 1,000) — against a national average of about 0.1 per 1,000 boys. These are per-capita rates, so they show where Aizen is a genuine regional favorite rather than just where the most babies are born.
Names like Aizen
Statistically, parents drawn to Aizen tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Zen, Arden, Aspen, Kyzen, and Hazen.
ZenArdenAspenKyzenHazenAvyanWrenAzlan
Rank history (last 25 years)
| Year | Babies named Aizen | Rank |
|---|---|---|
| 2025 | 199 | #1081 |
| 2024 | 223 | #1005 |
| 2023 | 190 | #1111 |
| 2022 | 209 | #1052 |
| 2021 | 152 | #1253 |
| 2020 | 114 | #1489 |
| 2019 | 111 | #1523 |
| 2018 | 94 | #1679 |
| 2017 | 106 | #1541 |
| 2016 | 94 | #1675 |
| 2015 | 80 | #1846 |
| 2014 | 65 | #2116 |
| 2013 | 71 | #1942 |
| 2012 | 56 | #2292 |
| 2011 | 68 | #1999 |
| 2010 | 47 | #2579 |
| 2009 | 27 | #3831 |
| 2008 | 19 | #4901 |
| 2007 | 9 | #8173 |
Frequently asked questions
How old is the name Aizen?
In official American birth records, the name Aizen first appeared in 2007 (over 18 years ago), when 9 newborn boys received the name. It has been tracked in modern national records for 18 years.
Is Aizen a popular boy name?
Aizen ranked #1083 among boys in 2025 with 199 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1846.
When was the name Aizen most popular?
Aizen peaked in 2024, when 223 American boys received the name (ranked #1005 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Aizen?
In 2025, roughly 1 in 9,045 newborn American boys was named Aizen. On our rarity scale (rarity blended with momentum) we classify it as "rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.