Seumas

Boys' name

Supplanter, heel-grabber, through James

Seumas has been given to 5 babies in the U.S. since 1981. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1981, with 5 recorded.

Babies named Seumas, 1981

1 in 692,000

Seumas over time, 1880–2025

Boys

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Seumas: meaning, origin, and history

Supplanter, heel-grabber, through James

Scottish Gaelic and Hebrew

What Seumas means

Seumas belongs to the name family reached through Seumas → Seumas → James → James → Iacomus. Its meaning is “supplanter, heel-grabber”.

Dictionary etymologyReferences, data & attribution

Borrowed from Scottish Gaelic Seumas. Doublet of Hamish.

Excerpt from Wiktionary: Seumas (English) · CC BY-SA 4.0

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

Seumas is used in English and Scottish Gaelic. Its origins include Scottish Gaelic and Hebrew.

Seumas comes through Scottish Gaelic Seumas.

Related names and everyday forms

Related names include James, Hamish, Séamas, Jamys, Seumas and Iacomus.

Pronunciation and spelling

In Scottish Gaelic, Seumas is pronounced /ˈʃeːməs̪/.

American usage and historical context

In the United States, 5 boys were recorded with the name Seumas between 1981 and 1981. Its highest annual count was 5 in 1981; its best national rank was #7,097 in 1981.

How common is Seumas?

Seumas had fewer than 5 recorded uses in 2025, so these figures use 1981, the last year it was published.

Among all babies, 1981: 1 in 692,000; 5 of 3,459,130 births
Among boys only: 1 in 358,000; <0.01% of boys
Rank, 1981: Unranked; Fewer than 5 uses
Coin-flip room size: 479,538 kids; Even odds of a second one

Where Seumas sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 1981 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%

Class of 30Under 1%

Grade of 100Under 1%

School of 500Under 1%

Put another way: gather 479,538 children born in 1981 and it's an even bet that one of them is another Seumas. In a class of 30 the chance is Under 1%.

When Seumass were born

Half of everyone ever recorded as Seumas was born before 1981 — so the typical Seumas is around 44 today.

Median birth year: 1981; About 44 years old
Biggest decade: 1980s; 100.0% of all use
Born in the last 25 years: 100.0%; A modern name
Recorded since 1950: 5; People you could plausibly meet

Choose a decade

1980s — 100.0% of all recorded uses (5).

Is Seumas rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago: —; Not ranked then
Rank vs 5 years ago: New entry; Not ranked then
Rank vs 10 years ago: —; Not ranked then
Births vs 10 years ago: —; Not published both years
Share of its own peak: 0%; Peak was 1981 (5)
Years since peak: 44; Years
Year-to-year steadiness: Not enough data; Too few years
Best rank ever: #7,097; 1981

Spellings of Seumas

Seumas is not the most common spelling — Seamus is, with 43.4% against Seumas's 0.03%.

Seamus43.4%7,809
Semaj41.2%7,421
Delmas12.5%2,259
Eulas2.9%517
Seumas0.03%5

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Seumas around the world

Where Seumas ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

England & Wales
1996–1996
#2,863
in 1996
Scotland
1974–2025
#441
in 2025
South Australia
1970–1970
#540
in 1970

Popularity data from Office for National Statistics, National Records of Scotland and Consumer and Business Services (South Australia). ONS, NRS data under Open Government Licence v3.0. CBS SA data under CC BY 4.0.

Seumas by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025: Unranked
Trend vs 5 yrs ago: —
Best rank ever: #7,097; 1981
Peak year: 1981; 5 that year
First recorded: 1981
Last recorded: 1981
All-time count: 5
Count in 2025: Under 5

Names similar to Seumas

Matched on shared beginnings and endings, similar length, and comparable popularity.

Dismas Kosmas Hermas Adamas Adomas Seamas Demas Acamas Cosmas Almas Lathomas Thommas Lumas Chalmas Homas Seung Tommas Dumas Thamas Seanthomas Mas Maximas Romas Jackthomas

Sibling names for Seumas

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

For a sister

Kandi Fawn Joi Jessi Jenelle Charissa Latrice Eboni

For a brother

Chauncey Leopoldo Jerod Dusty Jamaal Wilfredo Antwan Donnell

Explore around Seumas

Top names of 1981, Seumas's peak year The 1980s in full Other names that peaked in 1981 Boys' names starting with S James & Jacob Variations & Nicknames