NameCensus.

UK boy's name

Iason

A masculine given name derived from the Greek Iasōn, meaning "healer".

For 2026, the newest official UK baby-name figures on this page are from 2024. That release is the current official benchmark rather than a forecast.

Iason is a boy's name in the UK records. People looking for Iason popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #4270, with 4 babies registered with the name. Its strongest year in the published records was 2018, with 7 births.

This profile covers 47 England and Wales registrations across 10 recorded years from 2009 to 2024. 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 57% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 47 living people in the UK are called Iason. 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 2025 or 2026.

Key insights

  • Iason ranked #4270 for boys in England and Wales in 2024, with 4 registrations.
  • The name peaked in 2018, when 7 boys were registered as Iason.
  • About 47 living people in the UK are estimated to have Iason as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#4270

2024

Births in 2024

4

Latest year

Peak year

2018

7 births

Estimated living

47

2026

Meaning

What does Iason mean?

The given name Iason has its origins in ancient Greek mythology and culture. It is derived from the Greek word "iasthai," which means "to heal." The name is closely associated with the mythological figure of Jason, the leader of the Argonauts who embarked on a quest to retrieve the Golden Fleece.

Iason appears in various ancient Greek texts, including the epic poem "Argonautica" by Apollonius of Rhodes, which recounts the adventures of Jason and his crew. The name is also mentioned in Euripides' play "Medea," where the tragic heroine Medea is the wife of Jason.

The earliest recorded instance of the name Iason can be traced back to ancient Greece, where it was given to individuals in honor of the mythological hero. One of the most notable historical figures bearing this name was Iason of Pherae, a ruler of the region of Thessaly in the 4th century BCE.

Throughout history, several other notable individuals have carried the name Iason:

1. Iason of Cyrene (3rd century BCE): A Greek philosopher and scholar from Cyrene, a city in modern-day Libya. He was a student of Ariston of Chios and a proponent of the Cyrenaic school of philosophy.

2. Iason of Tralles (6th century CE): A Byzantine architect and engineer from the city of Tralles (modern-day Aydin, Turkey). He is credited with the construction of the Hagia Sophia, one of the most iconic Byzantine churches in Istanbul.

3. Iason of Nicomedia (4th century CE): A Christian martyr and saint who was executed during the reign of Emperor Diocletian for refusing to renounce his faith.

4. Iason Vatatzes (13th century CE): A Byzantine nobleman who served as the Regent of the Empire of Nicaea from 1222 to 1254 during the reign of John III Ducas Vatatzes.

5. Iason Denores (15th century CE): A Greek scholar and philosopher who lived during the Renaissance period. He was a prominent figure in the Platonic Academy of Florence and played a crucial role in the revival of Greek studies in Italy.

While the name Iason has its roots in ancient Greek culture, it has been adopted and used in various forms across different languages and cultures throughout history, reflecting its enduring appeal and connection to the legendary figure of Jason.

Sourced from namecensus.com.

Popularity

Iason over time

The chart below shows babies named Iason registered in England and Wales in the years where the name appears in the published records, from 2009 to 2024. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Iason, the clearest high point is 2018. The latest England and Wales figure is 4 births in 2024, compared with 7 at the peak.

Babies born per year

Iason
02457200920162024

Decades

Iason by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Iason 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 #3279 18 3
2010s #3902 26 6
2000s #4527 3 1

Related

Names similar to Iason

FAQ

Iason: questions and answers

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

In 2024, Iason was ranked #4270 for boys in England and Wales, with 4 births registered.

When was Iason most popular?

The peak year on record was 2018, with 7 babies registered as Iason in England and Wales.

What is the meaning and origin of Iason?

A masculine given name derived from the Greek Iasōn, meaning "healer".

How many people are called Iason in the UK?

A total of 47 babies have been registered as Iason across the 10 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.