NameCensus.

UK boy's name

Izaiah

A masculine name of Hebrew origin meaning "salvation of the Lord".

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.

Izaiah is a boy's name in the UK records. People looking for Izaiah popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #800, with 41 babies registered with the name. Its strongest year in the published records was 2021, with 49 births.

This profile covers 395 England and Wales registrations across 20 recorded years from 2001 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 84% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 393 living people in the UK are called Izaiah. 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

  • Izaiah ranked #800 for boys in England and Wales in 2024, with 41 registrations.
  • The name peaked in 2021, when 49 boys were registered as Izaiah.
  • About 393 living people in the UK are estimated to have Izaiah as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#800

2024

Births in 2024

41

Latest year

Peak year

2021

49 births

Estimated living

393

2026

Meaning

What does Izaiah mean?

The name Izaiah is a variant of the Hebrew name Isaiah, which means "salvation of the Lord" or "the Lord is salvation." The name can be traced back to the biblical prophet Isaiah, who lived in the 8th century BC in the ancient Kingdom of Judah.

The Book of Isaiah in the Old Testament of the Bible is attributed to the prophet Isaiah, who was a prominent figure during the reign of King Hezekiah. Isaiah's teachings and prophecies played a significant role in the development of Judaism and Christianity.

The name Izaiah gained popularity during the Middle Ages, particularly among Jewish communities. One of the earliest recorded individuals with this name was Izaiah ben Abraham, a 12th-century Jewish philosopher and commentator from Spain.

In the 16th century, Izaiah ben Judah Gershon, a Jewish scholar and grammarian, made notable contributions to the study of Hebrew grammar and linguistics.

During the 17th century, Izaiah Horowitz, a renowned Kabbalist and Talmudic scholar from Prague, wrote several influential works on Jewish mysticism and ethics.

In the 19th century, Izaiah Berlin, a Russian-British philosopher and historian, was widely recognized for his contributions to the study of political theory and the concept of liberty.

Another notable individual with the name Izaiah was Izaiah Davenport, an African American Baptist minister and abolitionist who lived in the 19th century and advocated for the abolition of slavery in the United States.

Over the centuries, the name Izaiah has been used across various cultures and communities, although it remains closely tied to its Hebrew origins and biblical associations.

Sourced from namecensus.com.

Popularity

Izaiah over time

The chart below shows babies named Izaiah registered in England and Wales in the years where the name appears in the published records, from 2001 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 Izaiah, the clearest high point is 2021. The latest England and Wales figure is 41 births in 2024, compared with 49 at the peak.

Babies born per year

Izaiah
012253749200120122024

Decades

Izaiah by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Izaiah 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 #748 221 5
2010s #1756 146 10
2000s #2505 28 5

Related

Names similar to Izaiah

FAQ

Izaiah: questions and answers

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

In 2024, Izaiah was ranked #800 for boys in England and Wales, with 41 births registered.

When was Izaiah most popular?

The peak year on record was 2021, with 49 babies registered as Izaiah in England and Wales.

What is the meaning and origin of Izaiah?

A masculine name of Hebrew origin meaning "salvation of the Lord".

How many people are called Izaiah in the UK?

A total of 395 babies have been registered as Izaiah across the 20 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.