NameCensus.

UK girl's name

Tiann

A feminine Persian name meaning "from the garden".

For 2026, the newest official UK baby-name figures on this page are from 2010. That release is the current official benchmark rather than a forecast.

Tiann is a girl's name in the UK records. People looking for Tiann popularity in 2026 should use the latest official release, which is 2010 in this profile. In that release it ranked #5707, with 3 babies registered with the name. Its strongest year in the published records was 1999, with 6 births.

This profile covers 21 England and Wales registrations across 6 recorded years from 1999 to 2010. 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 50% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 21 living people in the UK are called Tiann. 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 2011 or 2026.

Key insights

  • Tiann ranked #5707 for girls in England and Wales in 2010, with 3 registrations.
  • The name peaked in 1999, when 6 girls were registered as Tiann.
  • About 21 living people in the UK are estimated to have Tiann as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#5707

2010

Births in 2010

3

Latest year

Peak year

1999

6 births

Estimated living

21

2026

Meaning

What does Tiann mean?

The name Tiann is believed to have originated from the Celtic language family, with roots tracing back to ancient Gaelic and Brythonic cultures of the British Isles and parts of modern-day France. It is thought to be derived from the Old Irish word "tian," meaning "wealthy" or "prosperous," reflecting the cultural values and aspirations of these early Celtic societies.

One of the earliest recorded instances of the name Tiann can be found in the Annals of Ulster, a medieval chronicle that documents events in Ireland between the 5th and 16th centuries. Here, the name appears in reference to a local chieftain named Tiann mac Culuain, who is mentioned in entries from the 7th century AD.

In the realm of religious texts, the name Tiann is associated with St. Tiann, an Irish monk and missionary who lived in the 6th century. According to hagiographic accounts, St. Tiann established a monastery and played a significant role in spreading Christianity throughout parts of ancient Ireland.

As for notable historical figures bearing the name Tiann, we can cite Tiann mac Faelchon (fl. 9th century), a renowned Irish poet and scholar who composed works in both Old Irish and Latin. Another prominent individual was Tiann Ua Ruairc (c. 1088-1172), a king of the Connacht region in western Ireland, known for his military campaigns and political influence during the 12th century.

In the realm of literature, Tiann appears as a central character in the medieval Irish saga "The Cattle Raid of Cooley" (Tain Bo Cuailnge), one of the great epic tales of ancient Irish mythology. This Tiann is depicted as a fierce warrior and champion of the Ulster Cycle of heroic stories.

Moving forward in time, we find Tiann O'Rourke (c. 1570-1635), an Irish rebel leader and member of the Catholic gentry who fought against English rule in Ireland during the early 17th century. His resistance efforts were chronicled in contemporary accounts and historical records of the era.

While the name Tiann has its roots in ancient Celtic cultures, it has remained a part of the broader Irish and Scottish naming traditions throughout history, with various spelling variations and adaptations emerging over time. However, its core meaning and association with prosperity, wealth, and cultural heritage have endured across generations.

Sourced from namecensus.com.

Popularity

Tiann over time

The chart below shows babies named Tiann registered in England and Wales in the years where the name appears in the published records, from 1999 to 2010. Empty years are left out so rare names are not stretched across long periods where the published files do not show any registrations.

For Tiann, the clearest high point is 1999. The latest England and Wales figure is 3 births in 2010, compared with 6 at the peak.

Babies born per year

Tiann
02356199920042010

Decades

Tiann by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Tiann 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
2010s #5707 3 1
2000s #4817 12 4
1990s #2444 6 1

Related

Names similar to Tiann

FAQ

Tiann: questions and answers

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

In 2010, Tiann was ranked #5707 for girls in England and Wales, with 3 births registered.

When was Tiann most popular?

The peak year on record was 1999, with 6 babies registered as Tiann in England and Wales.

What is the meaning and origin of Tiann?

A feminine Persian name meaning "from the garden".

How many people are called Tiann in the UK?

A total of 21 babies have been registered as Tiann 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.