NameCensus.

UK girl's name

Sieanna

Of uncertain origin, potentially a feminine variant of the name Sia.

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.

Sieanna is a girl's name in the UK records. People looking for Sieanna popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #5891, with 3 babies registered with the name. Its strongest year in the published records was 2013, with 5 births.

This profile covers 22 England and Wales registrations across 6 recorded years from 2008 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 60% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 22 living people in the UK are called Sieanna. 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

  • Sieanna ranked #5891 for girls in England and Wales in 2024, with 3 registrations.
  • The name peaked in 2013, when 5 girls were registered as Sieanna.
  • About 22 living people in the UK are estimated to have Sieanna as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#5891

2024

Births in 2024

3

Latest year

Peak year

2013

5 births

Estimated living

22

2026

Meaning

What does Sieanna mean?

The name Sieanna has its origins in the Gaelic language, which has been spoken in parts of Scotland, Ireland, and the Isle of Man since ancient times. The name is believed to be derived from the Gaelic word "síodhán," which means "fairy" or "faerie folk." This connection to the mythical realm of fairies suggests that the name may have been used to honor or pay tribute to these mystical beings in Celtic folklore.

In its earliest recorded form, the name was spelled as "Sidhán" or "Sídhán," reflecting its Gaelic roots. Over time, various spelling variations emerged, including "Sieanna," "Sianna," and "Sheena." These variations likely arose due to regional dialects and the evolution of language over centuries.

One of the earliest recorded instances of the name Sieanna can be found in the Irish Annals, a collection of medieval chronicles that documented significant events and genealogies in Ireland. The Annals mention a woman named Sídhán who lived in the 7th century and was renowned for her skills as a healer and herbalist.

Throughout history, several notable individuals have borne the name Sieanna or its variations. One such person was Sidhán Ní Chonchubhair (1228-1305), a renowned Irish poet and noblewoman who was celebrated for her literary works and patronage of the arts during the Middle Ages.

Another notable figure was Sidhán Ó Duibhir (1532-1616), an Irish chieftain and military leader who played a pivotal role in the Nine Years' War against English forces in Ulster, fighting to defend Irish sovereignty and traditions.

In Scotland, the name Sieanna was associated with Sidhán MacLeòid (1657-1724), a renowned Highland warrior and clan chief who was renowned for her bravery and leadership during the Jacobite uprisings of the late 17th and early 18th centuries.

During the Victorian era, the name Sieanna gained popularity among certain circles in Britain and Ireland, possibly influenced by the Romantic movement's fascination with Celtic folklore and mythology. One notable figure from this period was Sieanna O'Shaughnessy (1844-1921), an Irish novelist and playwright whose works explored themes of Irish culture and identity.

In more recent times, the name Sieanna has been embraced by individuals of various cultural backgrounds, drawn to its unique sound and connection to Celtic mythology. However, it remains a relatively uncommon name, lending it a sense of distinctiveness and mystique.

Sourced from namecensus.com.

Popularity

Sieanna over time

The chart below shows babies named Sieanna registered in England and Wales in the years where the name appears in the published records, from 2008 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 Sieanna, the clearest high point is 2013. The latest England and Wales figure is 3 births in 2024, compared with 5 at the peak.

Babies born per year

Sieanna
01345200820162024

Decades

Sieanna by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Sieanna 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 #5891 3 1
2010s #4840 16 4
2000s #5545 3 1

Related

Names similar to Sieanna

FAQ

Sieanna: questions and answers

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

In 2024, Sieanna was ranked #5891 for girls in England and Wales, with 3 births registered.

When was Sieanna most popular?

The peak year on record was 2013, with 5 babies registered as Sieanna in England and Wales.

What is the meaning and origin of Sieanna?

Of uncertain origin, potentially a feminine variant of the name Sia.

How many people are called Sieanna in the UK?

A total of 22 babies have been registered as Sieanna across the 6 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.