NameCensus.

UK boy's name

Iarlaith

Iarlaith is a boy's name in the UK records.

We estimate that about 68 living people in the UK are called Iarlaith. 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

  • Iarlaith ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #136 in 2024.
  • About 68 living people in the UK are estimated to have Iarlaith as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

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Births in -

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Peak year

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Estimated living

68

2026

Geography

Where Iarlaith is most common

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

Iarlaith ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #136 in 2024.

Northern Ireland
16

Across the UK

Iarlaith in Scotland and Northern Ireland

Northern Ireland (NISRA)

#136 in 2024

9 years of NISRA records, 68 total registered

Related

Names similar to Iarlaith

FAQ

Iarlaith: questions and answers

Where is Iarlaith most common?

In the latest published local rankings, Iarlaith ranks best in Northern Ireland, where it placed #136 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.