NameCensus.

UK boy's name

Leonis

From Latin, meaning "of the lion".

For 2026, the newest official UK baby-name figures on this page are from 2022. That release is the current official benchmark rather than a forecast.

Leonis is a boy's name in the UK records. People looking for Leonis popularity in 2026 should use the latest official release, which is 2022 in this profile. In that release it ranked #3449, with 5 babies registered with the name. Its strongest year in the published records was 2022, with 5 births.

This profile covers 20 England and Wales registrations across 5 recorded years from 2014 to 2022. The figures come from ONS England and Wales, so the page is a view of published baby-name registrations rather than a forecast or a live count of people using the name today.

Leonis is at its recorded peak in the England and Wales series.

We estimate that about 20 living people in the UK are called Leonis. This uses published birth registrations from England and Wales, Scotland and Northern Ireland, then applies ONS national life tables to estimate how many are likely still alive. It does not forecast extra births for 2023 or 2026.

Key insights

  • Leonis ranked #3449 for boys in England and Wales in 2022, with 5 registrations.
  • The name peaked in 2022, when 5 boys were registered as Leonis.
  • About 20 living people in the UK are estimated to have Leonis as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#3449

2022

Births in 2022

5

Latest year

Peak year

2022

5 births

Estimated living

20

2026

Meaning

What does Leonis mean?

Leonis is a given name with its origins traced back to Latin and ancient Rome. The name is derived from the Latin word "leo," meaning "lion." This suggests that the name may have been bestowed upon individuals who displayed qualities associated with the mighty lion, such as strength, courage, and leadership.

In ancient Roman mythology, Leo was the name given to the constellation representing a lion. This celestial connection hints at the name's potential astrological significance, as celestial bodies and constellations often played a role in naming practices across various cultures.

One of the earliest recorded individuals with the name Leonis was a Roman Catholic prelate, Leonis of Isaurian, who lived in the 5th century AD. He served as the Bishop of Rouen in Normandy, France, and was renowned for his piety and dedication to the Church.

During the Middle Ages, the name Leonis gained popularity across Europe, particularly in regions influenced by Latin and Roman culture. Notable figures from this period include Leonis Diaconus, a 10th-century Byzantine historian who chronicled the reigns of several Byzantine emperors.

In the Renaissance era, Leonis Battista Alberti (1404-1472) was a renowned Italian Renaissance humanist, author, artist, architect, poet, and philosopher. His influential works spanned various disciplines, including architecture, art theory, and the study of ancient Roman ruins.

Another notable figure was Leonis Leonov (1828-1919), a Russian Arctic explorer and naval officer. He led several expeditions to the Arctic regions and made significant contributions to the exploration and mapping of the Russian Arctic.

In more recent times, Leonis Karpinsky (1924-2005) was a renowned Ukrainian-American dancer and choreographer. He was a principal dancer with the Ballet Russe de Monte Carlo and later founded the Leonis Karpinsky Dance Theatre in New York City.

While the name Leonis may not be as common today as it once was, its rich history and connections to ancient cultures, mythology, and notable figures make it a unique and intriguing name with a storied past.

Sourced from namecensus.com.

Popularity

Leonis over time

The chart below shows babies named Leonis registered in England and Wales in the years where the name appears in the published records, from 2014 to 2022. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Leonis, the clearest high point is 2022. The latest England and Wales figure is 5 births in 2022, compared with 5 at the peak.

Babies born per year

Leonis
01345201420182022

Decades

Leonis by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Leonis was a short-lived spike or a name that stayed in regular use. Average rank is calculated only from years where a published rank exists.

Decade Average rank Total births Years covered
2020s #3649 9 2
2010s #4234 11 3

Related

Names similar to Leonis

FAQ

Leonis: questions and answers

How popular is the name Leonis in the UK right now?

In 2022, Leonis was ranked #3449 for boys in England and Wales, with 5 births registered.

When was Leonis most popular?

The peak year on record was 2022, with 5 babies registered as Leonis in England and Wales.

What is the meaning and origin of Leonis?

From Latin, meaning "of the lion".

How many people are called Leonis in the UK?

A total of 20 babies have been registered as Leonis across the 5 years of ONS England & Wales records shown here.

Which records is this page based on?

The England and Wales timeline uses ONS baby-name records. Scotland figures come from NRS and Northern Ireland figures come from NISRA. Counts are registrations in published baby-name files. The living estimate uses those birth registrations with ONS national life tables.