Shaughnessy
surname · Latin script
Meaning: from Irish Gaelic O Seachnasai, ‘descendant of Seachnach’, a personal name (Encyclopedia of surnames [the complete companion to tracing your names history])
(measured from records)Officially recorded in 10 countries · latest register: BFS, 2024
Shaughnessy is a surname written in the Latin script, with more bearers in the United States than in any other country: 6,117 people, counted by the Census Bureau in 2010.
- USUnited States1 in 54K(measured from records)
- DKDenmark1 in 391K
- SESweden1 in 785K
carrying the name, as counted by each country's national register. 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
- 18 (measured from records)
- 1 in 54K (inferred from the name graph)
6,117 people, 2010
corpus datasets behind its best-documented spelling
strongest: reference-verified
United States
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.
Meaning & origin
(measured from records)from Irish Gaelic O Seachnasai, ‘descendant of Seachnach’, a personal name. The rest of the page continues the note in the source, but the surname entry is this Irish patronymic.
Cited for this meaning 1
- Encyclopedia of surnames [the complete companion to tracing your names history]
Attested across 2 languages in the etymology graph.
Where the surname Shaughnessy is found
(measured from records)Shaughnessy 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 | 6,117 | 1 in 54K | 6.1K | Shaughnessy | 18 |
| DK Denmark | 15 | 1 in 391K | 15 | — | — |
| ES Spain | 14 | 1 in 3.6M | 14 | — | — |
| SE Sweden | 13 | 1 in 785K | 13 | — | — |
| CH Switzerland | 5 | 1 in 1.7M | 5 | Shaughnessy | 1 |
6,117 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; Danmarks Statistik — Hvor mange hedder...? (living-population name counts); INE — Padrón per-token widgets (current living counts, given + apellidos); Skatteverket — Sök hur många som har ett visst namn (living population); BFS — Familiennamen der Wohnbevölkerung (surnames). 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).
Other recorded senses
(measured from records)Shaughnessy is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In English, Irish Gaelic; the stately one; boy/girl.
as a nameBaby names, 25,350 baby names nicknames for your family, friends pets, including the top 100 names, 2,000 most popular…
Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.
Notable people with this name
(measured from records)- Mickey Shaughnessyb. 1920USAmerican actor (1920-1985)
- Charles Shaughnessyb. 1955GBEnglish actor
- Meghann Shaughnessyb. 1979USAmerican tennis 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)20 registers and reference works attest this spelling, across 10 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Where does the name Shaughnessy come from?
- from Irish Gaelic O Seachnasai, ‘descendant of Seachnach’, a personal name. The rest of the page continues the note in the source, but the surname entry is this Irish patronymic. Recorded by Encyclopedia of surnames [the complete companion to tracing your names history].
- What does the name Shaughnessy mean?
- Recorded meaning: from Irish Gaelic O Seachnasai, ‘descendant of Seachnach’, a personal name.
- Which countries have the most people with the surname Shaughnessy?
- In the United States, the national register counted about 6.1 thousand people named Shaughnessy, more than in any other country we hold, where it is most often spelled shaughnessy. After it come Denmark, Spain, Sweden and Switzerland; the country table on this page ranks them.
- Where is Shaughnessy most common?
- Shaughnessy is densest in the United States, where the national register counts about 1 in 54 thousand people carrying it.
- How common is the name Shaughnessy?
- In the United States, the national register counted 6,117 people named Shaughnessy in 2010, about 1 in 54 thousand residents.
What do you want to know about Shaughnessy?
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/shaughnessyThe 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, “Shaughnessy” — ranked 5310th in the United States (Census Bureau, 2010). Data snapshot 2026-10-13.