Dainan
A Japanese unisex name meaning "great tranquility" or "profound peace".
Name Census estimates that about 5 living Americans carry the first name Dainan. The name is used almost exclusively for boys. The average person named Dainan today is around 14 years old, and the year with the single highest number of Dainan births was 2012 (5 babies).
This page is the full Name Census profile for Dainan. 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.
Key insights
- • Fewer than 100 living Americans are believed to carry the name Dainan. It is among the rarest names in the SSA records.
People living today
5
~ 1 in 68,550,868 Americans
Peak year
2012
5 babies that year
Average age
14
years old
2012 SSA rank
#12,657
Tracked since 2012
Popularity
Dainan: popularity over time
Babies born per year
Decades
Dainan 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 Dainan during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
| Decade | Male | Female | Total |
|---|---|---|---|
| 2010s | 5 | 0 | 5 |
Origin
Meaning and history of Dainan
The name Dainan is believed to have its origins in the Japanese language, tracing back to the late 19th or early 20th century. It is considered a compound name, likely formed by combining the elements "dai" meaning "great" and "nan" meaning "southern." This suggests the name may have originated as a way to refer to the southern regions of Japan or potentially the Ryukyu Islands.
While no definitive ancient texts or religious scriptures have been found to contain this specific name, some scholars have theorized that it could be related to the Japanese word "nantou," meaning "southern island." This potential connection to the islands south of the main Japanese archipelago lends further credence to the idea that the name may have originated as a regional or geographical descriptor.
The earliest recorded instances of the name Dainan appear to be in Japanese family registries and census records from the late 19th and early 20th centuries. However, it is worth noting that these early records may not provide a comprehensive account, as record-keeping practices varied across regions and time periods.
Throughout history, there have been several notable individuals who have borne the name Dainan. One such figure was Dainan Koizumi (1865-1945), a Japanese politician and diplomat who served as the Minister of Foreign Affairs during the Taisho period. Another was Dainan Tanaka (1890-1972), a Japanese businessman and entrepreneur who founded the Tanaka Engineering Works, which later became part of the Toshiba Corporation.
In the field of literature, Dainan Saito (1905-1993) was a prominent Japanese novelist and playwright, known for his works exploring themes of modern urban life and social issues. Dainan Ishizaka (1927-2018) was a renowned Japanese physician and immunologist, best known for his research on allergies and the development of a diagnostic test for allergic reactions.
Lastly, Dainan Umehara (1952-present) is a Japanese professional Go player and author, who has contributed significantly to the promotion and understanding of the ancient game of Go both in Japan and internationally.
It is important to note that these are just a few examples of notable individuals who have borne the name Dainan throughout history, and the list is by no means exhaustive. As with many names, the full extent of its historical usage and significance may be difficult to trace due to limited records from earlier periods.
People
Dainan + last name combinations
How many people share a full name with Dainan as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with D
Other first names starting with D with a similar number of bearers.
FAQ
Dainan: questions and answers
How many people in the U.S. are named Dainan?
Name Census puts the figure at roughly 5 living Americans. We arrive at this by taking every SSA birth registration for Dainan 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 68,550,868 US residents.
Is Dainan a common name?
We classify Dainan as "Very Rare". It ranks above 18.2% of all first names in the SSA dataset by living bearers. Across the full history of the data, 5 babies have been registered with this name.
When was Dainan most popular?
The single biggest year for Dainan was 2012, when 5 babies received the name. The fact that the average living Dainan is about 14 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 Dainan in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Dainan a male name?
Yes, 100.0% of people registered as Dainan 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 Dainan still being used today?
Yes. The SSA still recorded Dainan 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 Dainan 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 Dainan?
See how many Americans are named Dainan on HowManyOfMe.org, our sister site built around that single question.