Aizen
A masculine Japanese name meaning "indigo dyebath" or "indigo dye-vat".
Name Census estimates that about 1,722 living Americans carry the first name Aizen. The name is used almost exclusively for boys. The average person named Aizen today is around 7 years old, and the year with the single highest number of Aizen births was 2024 (223 babies).
This page is the full Name Census profile for Aizen. Below you will find a gender breakdown showing how the name splits between male and female registrations, a year-by-year popularity chart stretching back to 1880, decade-level totals, the top US states for this name, its meaning and etymology, and a set of frequently asked questions with data-backed answers.
For a British comparison, Name Census UK has a UK baby-name profile for Aizen with official rankings and popularity over time.
Key insights
- • Aizen is a relatively new arrival in the SSA data. The average bearer is just 7 years old, meaning it gained most of its traction in the last two decades.
People living today
1.7K
~ 1 in 199,044 Americans
Peak year
2024
223 babies that year
Average age
7
years old
2024 SSA rank
#1,003
Tracked since 2007
Popularity
Aizen: popularity over time
The SSA tracks Aizen from the 2000s through to the 2020s, spanning 3 decades of birth certificate data. The biggest single decade for the name was the 2020s, with 887 total registrations. The name continues to be given at rates close to its all-time high, suggesting it has not yet fallen out of fashion.
Babies born per year
Decades
Aizen by decade
The table below breaks the full SSA timeline into ten-year windows. Each row shows how many male and female babies were given the name Aizen during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Aizens live
The SSA's state-level files cover 22 states and territories. California, Texas, Florida recorded the most babies named Aizen, while Utah, Rhode Island, Indiana recorded the fewest. The average across all reporting states is about 44 registrations each.
Origin
Meaning and history of Aizen
The name Aizen is believed to have its origins in Japanese culture, although its precise etymology is uncertain. Some scholars suggest it may be derived from the Japanese word "aizen," which means "grace" or "favor." Others propose a connection to the word "ai," meaning "love" or "affection."
One of the earliest recorded instances of the name Aizen can be found in the ancient Japanese text, the Kojiki, which dates back to the 8th century CE. Here, Aizen is mentioned as the name of a deity associated with love and beauty.
In Japanese mythology, Aizen is sometimes depicted as a minor kami (deity) or as a companion to the more prominent deities Amaterasu (the sun goddess) and Tsukuyomi (the moon god). Aizen's role was often associated with grace, elegance, and the cultivation of beauty.
The first recorded individual bearing the name Aizen was Aizen no Miko, a Japanese princess who lived in the 7th century CE. She was known for her beauty and grace, and her name became synonymous with these qualities.
Another notable figure in history with the name Aizen was Aizen Myō'ō, a Japanese Buddhist monk who lived in the 9th century CE. He was renowned for his teachings on compassion and enlightenment and was regarded as a highly influential figure in the development of Shingon Buddhism.
In the 12th century, there was a Japanese poet named Aizen no Kiyosuke, who was part of the prestigious Mikohidari family of poets. His works were celebrated for their elegance and delicacy, reflecting the qualities associated with the name Aizen.
During the Edo period (1603-1868), Aizen Ittoku was a famous Japanese calligrapher and painter. His works were highly regarded for their beauty and skill, and he was considered a master of the art of calligraphy.
In more recent times, Aizen Kunitake was a Japanese businessman and philanthropist who lived from 1888 to 1972. He founded the Aizen Kunitake Foundation, which provided educational and cultural support to communities across Japan.
While the name Aizen is not as common today as it once was, it remains a part of Japanese cultural heritage, evoking qualities of grace, beauty, and elegance that have been associated with it throughout history.
People
Aizen + last name combinations
How many people share a full name with Aizen as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with A
Other first names starting with A with a similar number of bearers.
FAQ
Aizen: questions and answers
How many people in the U.S. are named Aizen?
Name Census puts the figure at roughly 1,722 living Americans. We arrive at this by taking every SSA birth registration for Aizen going back to 1880 and adjusting each cohort for expected survival using CDC actuarial life tables. The result is an age-weighted living-bearer count, not a raw birth total. That works out to about 1 in 199,044 US residents.
Is Aizen a common name?
We classify Aizen as "Rare". It ranks above 93.1% of all first names in the SSA dataset by living bearers. Across the full history of the data, 1,734 babies have been registered with this name.
When was Aizen most popular?
The single biggest year for Aizen was 2024, when 223 babies received the name. The fact that the average living Aizen is about 7 years old gives you a rough sense of which era contributed the most bearers who are still alive today.
What does the SSA popularity chart show?
The chart tracks births, not the number of people alive with the name today. Each point shows how many babies were given the name Aizen in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Aizen a male name?
Yes, 100.0% of people registered as Aizen in the SSA data are male. You can see the full per-sex comparison in the gender distribution section above, which includes the latest year rank, birth count, and peak year for each sex.
Is Aizen still being used today?
Yes. The SSA still recorded Aizen in 2024, and the page above shows its latest-year rank where available. A name can be well past its peak and still remain in steady use, especially if it built up a large population over earlier decades.
Why can a name have a lot of living bearers even if it is not trendy now?
Because living-bearer counts and current baby-name popularity measure different things. A name like Aizen can build up a very large population over many decades, even if fewer parents are choosing it now than they did at its peak.
Where does this data come from?
First-name figures come from the Social Security Administration's national baby name files, which cover every name on a birth certificate from 1880 to 2024. Living-bearer estimates layer in CDC actuarial life tables broken out by sex to account for mortality. The population baseline (342,754,338) is the Census Bureau's latest national estimate. You can read the full calculation on our methodology page.
Does every first name have Census demographic data?
No. The public Census first-name release only covers names that met the Bureau's publication rules, so many rarer names in the SSA files do not have a published Census demographic snapshot. In those cases, the page still shows the SSA trend, gender history, and state data.
How common is the name Aizen?
Our sister site HowManyOfMe.org answers how many people share the name Aizen at a glance, with the living-bearer count up front.