NameCensus.

UK girl's name

Fianna

A feminine name of Irish origin, meaning "fair" or "white".

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.

Fianna is a girl's name in the UK records. People looking for Fianna popularity in 2026 should use the latest official release, which is 2020 in this profile. In that release it ranked #5493, with 3 babies registered with the name. Its strongest year in the published records was 2017, with 6 births.

This profile covers 37 England and Wales registrations across 10 recorded years from 2005 to 2020. 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 50% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 304 living people in the UK are called Fianna. 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

  • Fianna ranked #5493 for girls in England and Wales in 2020, with 3 registrations.
  • The name peaked in 2017, when 6 girls were registered as Fianna.
  • Fianna ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #161 in 2024.
  • About 304 living people in the UK are estimated to have Fianna as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#5493

2020

Births in 2020

3

Latest year

Peak year

2017

6 births

Estimated living

304

2026

Meaning

What does Fianna mean?

The name Fianna is derived from the Irish Gaelic language and has its origins in ancient Irish mythology. It is believed to have originated from the Fianna, a legendary band of warriors and hunters led by the mythical hero Finn McCool.

The term Fianna is thought to come from the Old Irish word "fían," which means "a group of roving warriors" or "a band of hunters." The Fianna were known for their bravery, loyalty, and skill in battle, and they played a significant role in many Irish folk tales and legends.

One of the earliest recorded mentions of the name Fianna can be found in the Fenian Cycle, a collection of stories and poems that recount the adventures of Finn McCool and his Fianna warriors. These tales were passed down through oral tradition for centuries before being written down in the 12th century.

Throughout history, there have been several notable individuals who bore the name Fianna. One of the earliest recorded instances is Fianna mac Báetáin, an Irish abbot who lived in the 7th century and founded the monastery of Ros Cumaile in County Laois.

Another significant figure was Fianna Fáil, the Irish republican political party founded in 1926. The party's name was chosen to evoke the spirit of the ancient Fianna warriors, representing the ideals of Irish nationalism and self-determination.

In more recent times, Fianna was the name of an Irish singer-songwriter, born Fianna Brazier in 1970, who gained popularity in the 1990s for her blend of traditional Irish music and contemporary folk.

Other notable individuals with the name Fianna include Fianna Ní Chinnéide (born 1957), an Irish politician and member of the Seanad Éireann; and Fianna McCall (born 1980), an American actress known for her roles in television series such as The Bold and the Beautiful.

While the name Fianna may not be as commonly used today as it once was, it remains an important part of Irish cultural heritage, evoking the spirit of courage, loyalty, and a deep connection to the country's rich mythological past.

Sourced from namecensus.com.

Popularity

Fianna over time

The chart below shows babies named Fianna registered in England and Wales in the years where the name appears in the published records, from 2005 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 Fianna, the clearest high point is 2017. The latest England and Wales figure is 3 births in 2020, compared with 6 at the peak.

Babies born per year

Fianna
02356200520122020

Decades

Fianna by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Fianna 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 #5493 3 1
2010s #5113 19 5
2000s #4565 15 4

Geography

Where Fianna is most common

The bars show the latest published local birth counts for Fianna. 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.

Fianna ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #161 in 2024.

Northern Ireland
12

Across the UK

Fianna in Scotland and Northern Ireland

Northern Ireland (NISRA)

#161 in 2024

20 years of NISRA records, 268 total registered

Related

Names similar to Fianna

FAQ

Fianna: questions and answers

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

In 2020, Fianna was ranked #5493 for girls in England and Wales, with 3 births registered.

When was Fianna most popular?

The peak year on record was 2017, with 6 babies registered as Fianna in England and Wales.

What is the meaning and origin of Fianna?

A feminine name of Irish origin, meaning "fair" or "white".

How many people are called Fianna in the UK?

A total of 37 babies have been registered as Fianna across the 10 years of ONS England & Wales records shown here and 268 in Northern Ireland.

Where is Fianna most common?

In the latest published local rankings, Fianna ranks best in Northern Ireland, where it placed #161 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.