Sheahan
surname · Latin script
(measured from records)Officially recorded in 7 countries · latest register: Census Bureau, 2020
Sheahan is a surname written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: Main GB Location (1881): scattered: esp. Middx. from Ó Síodhacháin, see Sheehan .
- IEIreland≈1 in 10Kfew records(inferred from the name graph)
- AUAustralia≈1 in 31K
- NZNew Zealand≈1 in 39Kfew records
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Record sources
- 308 (measured from records)
- ≈1 in 10K (inferred from the name graph)
2,726 people, 2010
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Ireland, est.
measured from records inferred from the name graph
Meaning & origin
(measured from records)Main GB Location (1881): scattered: esp. Middx. from Ó Síodhacháin, see Sheehan .
Cited for this meaning 1
- The Oxford Dictionary of Family Names in Britain and Ireland
Where in the world
(measured from records)Sheahan counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| US United States | — | 2,726 | 1 in 122K | 2.7K | Sheahan | 308 |
| AU Australia | — | ≈830 est. | ≈1 in 31K | — | Sheahan | 120 |
| GH Ghana | — | ≈700 est. | ≈1 in 42K | — | Sheahan | 2 |
| GB United Kingdom | — | ≈650 est. | ≈1 in 101K | 510 | Sheahan | 102 |
| IE Ireland | #861 | ≈500 est. | ≈1 in 10K | — | Sheahan | 80 |
| CA Canada | — | ≈400 est. | ≈1 in 95K | — | Sheahan | 73 |
| NZ New Zealand | — | ≈130 est. | ≈1 in 39K | — | Sheahan | 17 |
2,726 people counted by Census Bureau — Surname Frequency 2010, 2010. Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.
Registers cited: Census Bureau — Surname Frequency 2010; Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register). Figures without a register are Mondonomo estimates; see Methodology.
Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).
Notable people with this name
(measured from records)- Fred Sheahanb. 1870AUAustralian rules footballer
- Gerald Sheahanb. 1872AUAustralian rules footballer (1872-1959)
- Patrick Sheahanb. 1876IEDublin Metropolitan Police Constable
- John Sheahanb. 1923USAmerican economist (1923–2017)
- John Sheahanb. 1939IETraditional Irish musician
- Paul Sheahanb. 1946AUAustralian cricketer
- Mike Sheahanb. 1947AUAustralian rules football journalist
- Janet Sheahanb. 1950AUAustralian rower
- Frankie Sheahanb. 1976CAIrish rugby union player
- Riley Sheahanb. 1991CACanadian ice hockey player
The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).
How to address them
(machine-generated)Evidence
(measured from records)15 registers and reference works attest this spelling, across 7 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 2.7K | #11,537 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 2.7K | #11,178 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 2.6K | #11,060 |
| GB United Kingdom | Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register) | 2002 | 510 | #11,190 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 3
- The Oxford Dictionary of Family Names in Britain and Ireland
- Wikipedia surname tokens
- Wikidata name items (native-script + romanized given/family names)
These works list the name; their figures are licensed and are not reproduced here.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Sheahan mean, and where does it come from?
- Main GB Location (1881): scattered: esp. Middx. from Ó Síodhacháin, see Sheehan . Recorded by The Oxford Dictionary of Family Names in Britain and Ireland.
- In which country does Sheahan have the most bearers?
- In the United States, the national register counted about 2.7 thousand people named Sheahan, more than in any other country we hold, where it is most often spelled sheahan.
- How common is the name Sheahan?
- In the United States, the national register counted 2,726 people named Sheahan in 2010, about 1 in 122 thousand residents.
- How common is Sheahan compared with other names?
- In Ireland, Sheahan is the 861st most common surname of 73,729 surnames recorded there.
What do you want to know about Sheahan?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/sheahanThe payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.
About this data
measured from records inferred from the name graph machine-generated
These figures come from the data snapshot of and will change as it is rebuilt.
Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.
Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.
Cite this page Mondonomo, “Sheahan” — the 861st most common surname in Ireland. Data snapshot 2026-10-13.