Acacius
A Greek name derived from akákios, meaning "not evil" or "harmless".
Name Census estimates that about 6 living Americans carry the first name Acacius. The name is used almost exclusively for boys. The average person named Acacius today is around 11 years old, and the year with the single highest number of Acacius births was 2015 (6 babies).
This page is the full Name Census profile for Acacius. 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 Acacius. It is among the rarest names in the SSA records.
People living today
6
~ 1 in 57,125,723 Americans
Peak year
2015
6 babies that year
Average age
11
years old
2015 SSA rank
#10,674
Tracked since 2015
Popularity
Acacius: popularity over time
Babies born per year
Decades
Acacius 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 Acacius 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 | 6 | 0 | 6 |
Origin
Meaning and history of Acacius
The name Acacius has its origins in Greek culture, deriving from the word "akakia" which means "harmlessness" or "simplicity". It is believed to have first emerged as a given name during the Hellenistic period, which spanned from the 4th to the 1st century BC.
One of the earliest recorded instances of the name Acacius can be found in the writings of the ancient Greek historian Plutarch, who mentioned an individual by that name in his work "Parallel Lives". This work, written in the late 1st century AD, suggests that the name was in use during the early Roman Empire.
In the 3rd century AD, there was a notable figure named Acacius who served as the Bishop of Caesarea in Palestine. He is remembered for his involvement in various theological disputes and councils of the early Christian church.
Another prominent historical figure with the name Acacius was a Byzantine statesman and diplomat who lived in the 5th century AD. He served as the Patriarch of Constantinople from 472 to 489 and played a significant role in the religious and political affairs of the Byzantine Empire.
During the Middle Ages, the name Acacius saw limited usage but resurfaced in the Renaissance period. One notable bearer of the name was Acacius Caesius, an Italian physician and scholar who lived in the 16th century (c. 1510-1572). He made contributions to the fields of medicine and natural history.
In the 17th century, Acacius Richtsteig (1596-1673) was a German Lutheran theologian and philosopher who gained recognition for his work on metaphysics and ethics.
Acacius Siranowitz (c. 1640-1704) was a Polish mathematician and astronomer who made important observations and calculations related to celestial bodies and their movements.
These are just a few examples of notable individuals throughout history who bore the name Acacius, which has its roots in Greek language and culture, and has been used across various regions and time periods.
People
Acacius + last name combinations
How many people share a full name with Acacius 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
Acacius: questions and answers
How many people in the U.S. are named Acacius?
Name Census puts the figure at roughly 6 living Americans. We arrive at this by taking every SSA birth registration for Acacius 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 57,125,723 US residents.
Is Acacius a common name?
We classify Acacius as "Very Rare". It ranks above 22.3% of all first names in the SSA dataset by living bearers. Across the full history of the data, 6 babies have been registered with this name.
When was Acacius most popular?
The single biggest year for Acacius was 2015, when 6 babies received the name. The fact that the average living Acacius is about 11 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 Acacius in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Acacius a male name?
Yes, 100.0% of people registered as Acacius 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 Acacius still being used today?
Yes. The SSA still recorded Acacius 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 Acacius 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 Acacius?
If you just want to know how many Americans are named Acacius, HowManyOfMe.org gives you the headline number in one glance.