Justas
A masculine Lithuanian name meaning "just" or "righteous".
Name Census estimates that about 5 living Americans carry the first name Justas. The name is used almost exclusively for boys. The average person named Justas today is around 27 years old, and the year with the single highest number of Justas births was 1999 (5 babies).
This page is the full Name Census profile for Justas. 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 Justas with official rankings and popularity over time.
Key insights
- • Fewer than 100 living Americans are believed to carry the name Justas. It is among the rarest names in the SSA records.
People living today
5
~ 1 in 68,550,868 Americans
Peak year
1999
5 babies that year
Average age
27
years old
1999 SSA rank
#10,743
Tracked since 1999
Popularity
Justas: popularity over time
Babies born per year
Decades
Justas 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 Justas during that decade, along with a combined total. This is useful for spotting eras where the name surged or retreated.
| Decade | Male | Female | Total |
|---|---|---|---|
| 1990s | 5 | 0 | 5 |
Origin
Meaning and history of Justas
The given name Justas is of Lithuanian origin, derived from the word "justus" which means "righteous" or "just" in Latin. This name has its roots in ancient Roman culture and was popular among early Christians.
The name Justas first appeared in religious texts and historical records during the early years of Christianity. One of the earliest known figures with this name was Saint Justus, a Christian martyr who lived in the 3rd century AD. He was a Roman nobleman who was executed for his faith during the persecutions under the Roman emperor Diocletian.
Another notable figure with the name Justas was Justus of Urgell, a Visigothic bishop who lived in the late 6th century AD. He played a significant role in the conversion of the Visigothic kingdom to Christianity and was known for his strong defense of Catholic doctrine.
In the 12th century, Justas de Noyon was a French monk and scholar who made important contributions to the study of canon law. He is often referred to as one of the first canonists, or experts in canon law.
During the Renaissance period, Justus Lipsius (1547-1606) was a renowned Flemish philosopher and humanist. He was a prominent figure in the Northern Renaissance and is best known for his works on Stoic philosophy and his contributions to the study of classical texts.
In the field of astronomy, Justus Sustermans (1597-1681) was a Flemish painter who became famous for his portraits of European royalty and nobility. He was appointed as a court painter to several rulers, including the Holy Roman Emperor Ferdinand II and the Spanish King Philip IV.
These are just a few examples of notable individuals throughout history who bore the name Justas. While the name has its origins in ancient Roman and early Christian cultures, it has been used across various regions and time periods, often associated with concepts of righteousness, justice, and virtue.
People
Justas + last name combinations
How many people share a full name with Justas as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with J
Other first names starting with J with a similar number of bearers.
FAQ
Justas: questions and answers
How many people in the U.S. are named Justas?
Name Census puts the figure at roughly 5 living Americans. We arrive at this by taking every SSA birth registration for Justas 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 Justas a common name?
We classify Justas 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 Justas most popular?
The single biggest year for Justas was 1999, when 5 babies received the name. The fact that the average living Justas is about 27 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 Justas in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Justas a male name?
Yes, 100.0% of people registered as Justas 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 Justas still being used today?
Yes. The SSA still recorded Justas 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 Justas 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 Justas?
For a faster, more casual read, check HowManyOfMe.org — our sister site built around that single question.