Leonydus
A masculine name of Greek origin meaning "son of the lion".
Name Census estimates that about 5 living Americans carry the first name Leonydus. The name is used almost exclusively for boys. The average person named Leonydus today is around 16 years old, and the year with the single highest number of Leonydus births was 2010 (5 babies).
This page is the full Name Census profile for Leonydus. 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 Leonydus. It is among the rarest names in the SSA records.
People living today
5
~ 1 in 68,550,868 Americans
Peak year
2010
5 babies that year
Average age
16
years old
2010 SSA rank
#13,483
Tracked since 2010
Popularity
Leonydus: popularity over time
Babies born per year
Decades
Leonydus 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 Leonydus 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 Leonydus
The name Leonydus is a unique and fascinating one, with a rich history that spans across cultures and centuries. Its origins can be traced back to ancient Greece, where it is believed to have been derived from the Greek words "leon" meaning lion and "dys" meaning setting or going down. This suggests that the name may have been associated with the concept of a lion setting or descending, perhaps a reference to the sun or a symbolic representation of strength and power.
In ancient Greek mythology, there are several references to figures with similar names, such as Leonidas, the legendary Spartan king who famously led his warriors against the Persians at the Battle of Thermopylae in 480 BC. While the spellings differ slightly, the root and meaning of the names are closely linked, further solidifying the Greek roots of Leonydus.
The earliest recorded instances of the name Leonydus can be found in historical texts and records from ancient Greece and the Byzantine Empire. One notable figure bearing this name was Leonydus of Byzantium, a Greek mathematician and astronomer who lived in the 5th century AD. His contributions to the field of mathematics, particularly in the study of conic sections, earned him a place in the annals of scientific history.
Moving forward in time, the name Leonydus continued to be used, albeit sporadically, throughout various periods and regions. In the 11th century, there was a Leonydus of Antioch, a Greek Orthodox Christian bishop and scholar who played a significant role in the religious and intellectual circles of his time.
During the Renaissance period, the name resurfaced with Leonydus of Venice, a renowned Italian painter and sculptor who lived from 1420 to 1499. His works, which included frescoes and sculptures adorning churches and palaces across Italy, showcased his mastery of the arts and left a lasting impact on the artistic landscape of the era.
Another notable figure was Leonydus of Amsterdam, a Dutch explorer and cartographer who lived from 1587 to 1652. His contributions to the field of cartography and his detailed maps of the Americas and the Caribbean region were instrumental in the Age of Exploration and the expansion of global trade and navigation.
Throughout history, the name Leonydus has been associated with individuals who have left their mark in various fields, from science and religion to art and exploration. While not as common as some other names, its unique and rich heritage has preserved its place in the annals of history, serving as a testament to the enduring legacy of names and their ability to transcend time and cultures.
People
Leonydus + last name combinations
How many people share a full name with Leonydus as the first name? Click a combination below to see the estimate, or search any pairing.
Related
Other names starting with L
Other first names starting with L with a similar number of bearers.
FAQ
Leonydus: questions and answers
How many people in the U.S. are named Leonydus?
Name Census puts the figure at roughly 5 living Americans. We arrive at this by taking every SSA birth registration for Leonydus 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 Leonydus a common name?
We classify Leonydus 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 Leonydus most popular?
The single biggest year for Leonydus was 2010, when 5 babies received the name. The fact that the average living Leonydus is about 16 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 Leonydus in that year. That makes it useful for spotting when the name rose, peaked, or faded.
Is Leonydus a male name?
Yes, 100.0% of people registered as Leonydus 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 Leonydus still being used today?
Yes. The SSA still recorded Leonydus 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 Leonydus 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 are named Leonydus?
See how many people share the name Leonydus on HowManyOfMe.org, our sister site built around that single question.