NameCensus.

UK boy's name

Cianan

A masculine name of Celtic origin, potentially meaning "ancient" or "enduring".

For 2026, the newest official UK baby-name figures on this page are from 2023. That release is the current official benchmark rather than a forecast.

Cianan is a boy's name in the UK records. People looking for Cianan popularity in 2026 should use the latest official release, which is 2023 in this profile. In that release it ranked #4991, with 3 babies registered with the name. Its strongest year in the published records was 2008, with 7 births.

This profile covers 46 England and Wales registrations across 10 recorded years from 1997 to 2023. The figures come from ONS England and Wales and NISRA Northern Ireland, 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 43% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 110 living people in the UK are called Cianan. 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 2024 or 2026.

Key insights

  • Cianan ranked #4991 for boys in England and Wales in 2023, with 3 registrations.
  • The name peaked in 2008, when 7 boys were registered as Cianan.
  • Cianan ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #404 in 2024.
  • About 110 living people in the UK are estimated to have Cianan as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#4991

2023

Births in 2023

3

Latest year

Peak year

2008

7 births

Estimated living

110

2026

Meaning

What does Cianan mean?

The name Cianan is a Celtic name derived from the ancient Irish Gaelic language. It is believed to have originated in the early medieval period, around the 5th or 6th century CE, in the regions of what is now Ireland and Scotland. The name is thought to be derived from the Irish Gaelic word "cionn," meaning "chief" or "leader," combined with the suffix "-an," denoting a diminutive form.

One of the earliest recorded instances of the name Cianan can be found in the Irish Annals, which document the life of Saint Cianan, a 6th-century Irish abbot and missionary. Saint Cianan is renowned for founding the monastery of Duleek in County Meath, Ireland, which became an important center of learning and spirituality during the early medieval period.

Another notable figure bearing the name Cianan was Cianan mac Ruadrach, a 7th-century King of Dál Riata, an ancient Gaelic kingdom spanning parts of modern-day Scotland and Northern Ireland. Cianan mac Ruadrach is mentioned in the Annals of Ulster as having ruled from approximately 668 to 689 CE.

In the 9th century, a scribe named Cianan is recorded as having worked on the Book of Kells, a renowned illuminated manuscript featuring intricate Celtic knot designs and calligraphic Gospel texts. This Cianan was a monk at the monastery of Iona, located off the western coast of Scotland.

During the 12th century, a Norman knight named Cianan de Lacy is mentioned in historical records as having participated in the Norman invasion of Ireland. Cianan de Lacy was granted lands in County Meath by King Henry II of England and is believed to have been a member of the powerful de Lacy family.

In more recent centuries, one notable figure was Cianan O'Reilly, an 18th-century Irish harper and composer from County Cavan. O'Reilly was renowned for his skill in playing the Irish harp and is credited with composing numerous traditional Irish tunes that have been preserved and passed down through generations.

While the name Cianan was once more prevalent in Ireland and Scotland, it has become relatively uncommon in modern times. However, it remains a part of the rich cultural heritage and history of the Celtic nations, carrying with it the echoes of ancient traditions and the legacies of notable figures from the past.

Sourced from namecensus.com.

Popularity

Cianan over time

The chart below shows babies named Cianan registered in England and Wales in the years where the name appears in the published records, from 1997 to 2023. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Cianan, the clearest high point is 2008. The latest England and Wales figure is 3 births in 2023, compared with 7 at the peak.

Babies born per year

Cianan
02457199720102023

Decades

Cianan by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Cianan 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 #4890 6 2
2000s #3131 30 6
1990s #2090 10 2

Geography

Where Cianan is most common

The bars show the latest published local birth counts for Cianan. They are useful for spotting where the name is showing up in real numbers, while the rank beside each bar shows how strongly it performs inside that region.

Cianan ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #404 in 2024.

Northern Ireland
3

Across the UK

Cianan in Scotland and Northern Ireland

Northern Ireland (NISRA)

#404 in 2024

14 years of NISRA records, 65 total registered

Related

Names similar to Cianan

FAQ

Cianan: questions and answers

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

In 2023, Cianan was ranked #4991 for boys in England and Wales, with 3 births registered.

When was Cianan most popular?

The peak year on record was 2008, with 7 babies registered as Cianan in England and Wales.

What is the meaning and origin of Cianan?

A masculine name of Celtic origin, potentially meaning "ancient" or "enduring".

How many people are called Cianan in the UK?

A total of 46 babies have been registered as Cianan across the 10 years of ONS England & Wales records shown here and 65 in Northern Ireland.

Where is Cianan most common?

In the latest published local rankings, Cianan ranks best in Northern Ireland, where it placed #404 in 2024. The regional bars on this page use birth counts, so they also reflect the size of each region.

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.