NameCensus.

UK boy's name

Cas

A masculine name of Norse origin meaning "prosperous.".

For 2026, the newest official UK baby-name figures on this page are from 2020. That release is the current official benchmark rather than a forecast.

Cas is a boy's name in the UK records. People looking for Cas popularity in 2026 should use the latest official release, which is 2020 in this profile. In that release it ranked #4608, with 3 babies registered with the name. Its strongest year in the published records was 2019, with 4 births.

This profile covers 10 England and Wales registrations across 3 recorded years from 2012 to 2020. 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.

The latest count is about 75% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 10 living people in the UK are called Cas. 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 2021 or 2026.

Key insights

  • Cas ranked #4608 for boys in England and Wales in 2020, with 3 registrations.
  • The name peaked in 2019, when 4 boys were registered as Cas.
  • About 10 living people in the UK are estimated to have Cas as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#4608

2020

Births in 2020

3

Latest year

Peak year

2019

4 births

Estimated living

10

2026

Meaning

What does Cas mean?

The name Cas has its origins in the Latin language and is derived from the ancient Roman name Cassius. The name Cassius itself is believed to have come from the word "cassus," which means "empty" or "hollow." This could be a reference to the physical appearance of a person or perhaps to their character.

Cassius was a prominent Roman family name during the Roman Republic and Empire periods. One of the most famous bearers of this name was Gaius Cassius Longinus, a Roman senator and a leading instigator of the assassination of Julius Caesar in 44 BC. He was a key figure in the events that led to the end of the Roman Republic and the rise of the Roman Empire.

Another notable figure in history who bore the name Cassius was Avidius Cassius, a Roman general and usurper who briefly ruled parts of the Roman Empire during the reign of Marcus Aurelius in the late 2nd century AD.

The name Cas, as a shortened version of Cassius, emerged in the Middle Ages and was used across various European regions. One of the earliest recorded examples of the name Cas can be found in the 13th century, when a Cas de Marvilla was mentioned in records from Lincolnshire, England.

Throughout history, there have been several notable individuals with the first name Cas. One such person was Cas Anvar (1971 - present), a Canadian actor best known for his roles in television series like "The Expanse" and "Olympus."

Another famous bearer of the name was Cas Holloway (1899 - 1923), a Canadian ice hockey player who played for the Toronto St. Patricks and the Hamilton Tigers in the early days of the National Hockey League.

In the world of music, Cas Haley (1935 - 2015) was a American singer and songwriter who co-wrote several popular songs, including "Neon Rainbow" and "Walk On Boy."

Cas Mustad (1858 - 1953) was a Norwegian industrialist and inventor who founded the Mustad fishhook company, which became one of the largest producers of fishing hooks in the world.

Lastly, Cas Walker (1892 - 1960) was a British football player who played as a forward for various clubs, including Sheffield United and Chelsea, in the early 20th century.

Sourced from namecensus.com.

Popularity

Cas over time

The chart below shows babies named Cas registered in England and Wales in the years where the name appears in the published records, from 2012 to 2020. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Cas, the clearest high point is 2019. The latest England and Wales figure is 3 births in 2020, compared with 4 at the peak.

Babies born per year

Cas
01234201220162020

Decades

Cas by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Cas 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 #4608 3 1
2010s #4371 7 2

Related

Names similar to Cas

FAQ

Cas: questions and answers

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

In 2020, Cas was ranked #4608 for boys in England and Wales, with 3 births registered.

When was Cas most popular?

The peak year on record was 2019, with 4 babies registered as Cas in England and Wales.

What is the meaning and origin of Cas?

A masculine name of Norse origin meaning "prosperous.".

How many people are called Cas in the UK?

A total of 10 babies have been registered as Cas across the 3 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.