Sadamu
A name of Japanese origin meaning "tranquil" or "peaceful clarity".
Name Census estimates that about 1 living Americans carry the first name Sadamu. The name is used almost exclusively for boys. The average person named Sadamu today is around 61 years old, and the year with the single highest number of Sadamu births was 1921 (8 babies).
This page is the full Name Census profile for Sadamu. 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 Sadamu. It is among the rarest names in the SSA records.
People living today
1
~ 1 in 342,754,338 Americans
Peak year
1921
8 babies that year
Average age
61
years old
1927 SSA rank
#4,132
Tracked since 1914
Popularity
Sadamu: popularity over time
The SSA tracks Sadamu from the 1910s through to the 1920s, spanning 2 decades of birth certificate data. The biggest single decade for the name was the 1920s, with 20 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
Sadamu 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 Sadamu during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
Geography
Where Sadamus live
Origin
Meaning and history of Sadamu
The given name Sadamu has its origins in Japanese culture and language. It is derived from the Japanese words "sa" meaning "prudent" or "wise," and "damu" meaning "ball" or "sphere." The name thus carries connotations of wisdom and completeness.
In ancient Japanese folklore and mythology, the name Sadamu is believed to have been associated with legendary figures known for their intelligence and strategic prowess. However, there are no definitive historical records linking the name to specific individuals from that era.
The earliest recorded use of the name Sadamu dates back to the 12th century, during the Kamakura period in Japan. It was initially used predominantly within the samurai class and among nobility, reflecting the virtues of wisdom and prudence that were highly valued in that society.
One of the earliest known individuals to bear the name Sadamu was Sadamu Fujiwara, a renowned scholar and calligrapher who lived from 1154 to 1242. He was celebrated for his mastery of the art of calligraphy and his contributions to the preservation of Japanese literary traditions.
Another notable figure with the name Sadamu was Sadamu Tokugawa, a 16th-century daimyo (feudal lord) who played a significant role in the unification of Japan under the Tokugawa shogunate. He lived from 1567 to 1636 and was known for his strategic acumen and leadership during a turbulent period in Japanese history.
In the realm of modern Japanese culture, Sadamu Yamaguchi (1908-1992) was a prominent author and playwright renowned for his works exploring themes of social justice and human rights. His plays and novels were widely acclaimed and contributed to the literary landscape of 20th-century Japan.
Sadamu Watanabe (1924-2017) was a celebrated Japanese jazz saxophonist and composer, widely regarded as one of the pioneers of modern jazz in Japan. His innovative style and collaborations with international musicians helped bridge cultural divides and popularize jazz music in his home country.
Sadamu Komachi (1940-2018) was a Japanese sculptor and artist known for his large-scale public installations and sculptures that combined traditional Japanese aesthetics with contemporary art forms. His works adorned public spaces and museums across Japan, showcasing the enduring influence of Japanese artistic traditions.
People
Sadamu + last name combinations
How many people share a full name with Sadamu as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with S
Other first names starting with S with a similar number of bearers.
FAQ
Sadamu: questions and answers
How many people in the U.S. are named Sadamu?
Name Census puts the figure at roughly 1 living Americans. We arrive at this by taking every SSA birth registration for Sadamu 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 342,754,338 US residents.
Is Sadamu a common name?
We classify Sadamu as "Very Rare". It ranks above 3.8% of all first names in the SSA dataset by living bearers. Across the full history of the data, 25 babies have been registered with this name.
When was Sadamu most popular?
The single biggest year for Sadamu was 1921, when 8 babies received the name. The fact that the average living Sadamu is about 61 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 Sadamu in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Sadamu a male name?
Yes, 100.0% of people registered as Sadamu 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 Sadamu still being used today?
Yes. The SSA still recorded Sadamu 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 Sadamu 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 many people share the name Sadamu?
Want to know how many people have the name Sadamu? HowManyOfMe.org, our sister site, puts the living-bearer count front and centre.