Reardon
surname · Latin script
Meaning: Irish Ó Rioghbhardáin ‘descendant of Rioghbhardán’ (royal-bard); first attested not given on page
(measured from records)Officially recorded in 10 countries · latest register: Census Bureau, 2020
Reardon is a surname written in the Latin script, with more bearers in the United States than in any other country.
- GBUnited Kingdom≈1 in 11K(inferred from the name graph)
- AUAustralia≈1 in 11K
- NZNew Zealand≈1 in 11Kfew records
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Record sources
- 397 (measured from records)
- ≈1 in 11K (inferred from the name graph)
14,435 people, 2010
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Australia, est.
measured from records inferred from the name graph
Meaning & origin
(measured from records)Irish Ó Rioghbhardáin ‘descendant of Rioghbhardán’ (royal-bard); first attested not given on page
Cited for this meaning 1
- A Dictionary of English Surnames
Where the surname Reardon is found
(measured from records)Reardon 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 | — | 14,435 | 1 in 23K | 14K | Reardon | 397 |
| GB United Kingdom | — | ≈6,000 est. | ≈1 in 11K | 2.7K | Reardon | 157 |
| AU Australia | — | ≈2,500 est. | ≈1 in 11K | — | Reardon | 149 |
| CA Canada | — | ≈2,300 est. | ≈1 in 18K | — | Reardon | 133 |
| ZA South Africa | — | ≈930 est. | ≈1 in 69K | — | Reardon | 38 |
| NZ New Zealand | #753 | ≈460 est. | ≈1 in 11K | — | Reardon | 62 |
| IE Ireland | — | ≈400 est. | ≈1 in 14K | — | Reardon | 54 |
14,435 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).
Other recorded senses
(measured from records)Reardon is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In English, shortened form of O’Riordan
as a nameEncyclopedia of surnames [the complete companion to tracing your names history]
In English, Irish Gaelic; a royal poet
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)- Ray Reardonb. 1932GBWelsh snooker player (1932–2024)
- Jim Reardonb. 1965USAmerican animator, director, and screenwriter
- John Reardonb. 1975CACanadian actor
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)18 registers and reference works attest this spelling, across 10 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Reardon mean, and where does it come from?
- Irish Ó Rioghbhardáin ‘descendant of Rioghbhardán’ (royal-bard); first attested not given on page Recorded by A Dictionary of English Surnames.
- Which countries have the most people with the surname Reardon?
- In the United States, the national register counted about 14 thousand people named Reardon, more than in any other country we hold, where it is most often spelled reardon. After it come United Kingdom, Australia, Canada and South Africa; the country table on this page ranks them.
- How common is the name Reardon?
- In the United States, the national register counted 14,435 people named Reardon in 2010, about 1 in 23 thousand residents.
- How common is Reardon compared with other names?
- In New Zealand, Reardon is the 753rd most common surname of 87,225 surnames recorded there.
What do you want to know about Reardon?
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/reardonThe 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, “Reardon” — the 753rd most common surname in New Zealand. Data snapshot 2026-10-13.