NameCensus.

UK boy's name

Seamus

Seamus is an Irish masculine name derived from Old Irish Sémús, meaning "supplanter".

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.

Seamus is a boy's name in the UK records. People looking for Seamus popularity in 2026 should use the latest official release, which is 2024 in this profile. In that release it ranked #981, with 31 babies registered with the name. Its strongest year in the published records was 2007, with 45 births.

This profile covers 909 England and Wales registrations across 29 recorded years from 1996 to 2024. The figures come from ONS England and Wales, NRS Scotland 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 69% of the recorded peak, which gives a quick read on how the name has moved since its high point.

We estimate that about 1,406 living people in the UK are called Seamus. 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

  • Seamus ranked #981 for boys in England and Wales in 2024, with 31 registrations.
  • The name peaked in 2007, when 45 boys were registered as Seamus.
  • Seamus ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #239 in 2024.
  • About 1,406 living people in the UK are estimated to have Seamus as a first name, after adjusting past birth registrations with ONS life tables.

Latest rank (E&W)

#981

2024

Births in 2024

31

Latest year

Peak year

2007

45 births

Estimated living

1,406

2026

Meaning

What does Seamus mean?

The name Seamus is a traditional Irish masculine given name derived from the Gaelic name Séamas, which is the Irish version of the name James. The name Séamas itself originated from the Late Latin name Iacomus, which in turn came from the Hebrew name Ya'aqov, meaning "supplanter" or "one who follows".

The name Seamus has been prevalent in Ireland for centuries and was particularly popular among Irish Catholics. Its earliest recorded use dates back to the 12th century, when it appeared in various medieval Irish manuscripts and annals.

One of the earliest known historical figures with the name Seamus was Seamus Ó Cilín, an Irish poet and historian who lived in the late 16th and early 17th centuries. He is best known for his work "Eochair-Sgiath an Aifrinn" (The Mass Key), a treatise on the celebration of the Mass.

Another notable bearer of the name was Seamus Heaney, the renowned Irish poet, playwright, and academic who lived from 1939 to 2013. Heaney was awarded the Nobel Prize in Literature in 1995 for his "works of lyric beauty and ethical depth, which exalt everyday miracles and the living past".

In the realm of Irish politics, Seamus Mallon, who lived from 1936 to 2020, was a prominent figure. He served as the Deputy Leader of the Social Democratic and Labour Party (SDLP) and played a crucial role in the Northern Ireland peace process, including the Good Friday Agreement.

Seamus Deane, born in 1940, is an Irish writer, critic, and academic. He is best known for his novels "Reading in the Dark" and "The Aunt's Story", which explore themes of Irish identity and the legacy of the Troubles.

Another important figure was Seamus Costello, an Irish republican paramilitary and founding member of the Irish Republican Army (IRA). He lived from 1939 to 1977 and played a significant role in the early stages of the Troubles in Northern Ireland.

These are just a few examples of notable individuals throughout history who have borne the name Seamus, a name deeply rooted in Irish culture and tradition.

Sourced from namecensus.com.

Popularity

Seamus over time

The chart below shows babies named Seamus registered in England and Wales in the years where the name appears in the published records, from 1996 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 Seamus, the clearest high point is 2007. The latest England and Wales figure is 31 births in 2024, compared with 45 at the peak.

Babies born per year

Seamus
011233445199620102024

Decades

Seamus by decade

Decade totals smooth out the yearly jumps and make it easier to see whether Seamus 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 #1217 114 5
2010s #1022 281 10
2000s #652 376 10
1990s #541 138 4

Geography

Where Seamus is most common

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

Seamus ranks best in Northern Ireland in the latest published regional snapshot for that area, where it placed #239 in 2024.

Scotland
10
Northern Ireland
8

Across the UK

Seamus in Scotland and Northern Ireland

Scotland (NRS)

#352 in 2024

34 years of NRS records, 185 total registered

Northern Ireland (NISRA)

#239 in 2024

28 years of NISRA records, 323 total registered

Notable bearers

Famous people named Seamus

  • Seamus Conneely

    association football player

    association football player (born 1988)

    1988-

  • Seamus Mallon

    rugby union player

    Irish rugby union player

    1980-

  • Seamus Makim

    filmmaker

    born 1981; nephew of Sarah, Duchess of York

    1980-

  • Seamus Blake

    composer; saxophonist; jazz musician

    Canadian jazz saxophonist

    1970-

  • Seamus Haji

    composer; disc jockey; record producer; musician

    British record producer and DJ

    1968-

  • Seamus McGarvey

    cinematographer; film director

    Irish cinematographer

    1967-

  • Seamus Mullarkey

    engineer

    British engineer

    1964-

  • Seamus Ryan

    photographer

    Irish photographer (1964- )

    1964-

Related

Names similar to Seamus

FAQ

Seamus: questions and answers

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

In 2024, Seamus was ranked #981 for boys in England and Wales, with 31 births registered.

When was Seamus most popular?

The peak year on record was 2007, with 45 babies registered as Seamus in England and Wales.

What is the meaning and origin of Seamus?

Seamus is an Irish masculine name derived from Old Irish Sémús, meaning "supplanter".

How many people are called Seamus in the UK?

A total of 909 babies have been registered as Seamus across the 29 years of ONS England & Wales records shown here, plus 185 more in Scotland and 323 in Northern Ireland.

Where is Seamus most common?

In the latest published local rankings, Seamus ranks best in Northern Ireland, where it placed #239 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.