Reardon

surname · Latin script

Meaning: Irish Ó Rioghbhardáin ‘descendant of Rioghbhardán’ (royal-bard); first attested not given on page

Recorded for both men and women· direction only, no split published

/ˈɹɪɹdən/(machine-generated) pronunciation, model-generated

Reardon is a surname written in the Latin script, with more bearers in China than in any other country.

rarermore common
  • AUAustralia≈1 in 11K(inferred from the name graph)
  • GBUnited Kingdom≈1 in 12K
  • USUnited States1 in 23K

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.

China (inferred from the name graph)

≈120,000 people, est.

Sources
397 (measured from records)

Highest-authority source

≈1 in 11K (inferred from the name graph)

New Zealand, 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

Sources 1

  • A Dictionary of English Surnames

Where in the world(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.

Where Reardon is recorded, by country
CountryMost common spellingSources
CN China—≈120,000 est.≈1 in 12K—Reardon7
US United States—14,4351 in 23K14KReardon397
GB United Kingdom—≈5,400 est.≈1 in 12K2.7KReardon157
ID Indonesia—≈3,200 est.≈1 in 84K—Reardon11
AU Australia—≈2,200 est.≈1 in 11K—Reardon149
NZ New Zealand#753≈460 est.≈1 in 11K—Reardon62
IE Ireland—≈370 est.≈1 in 14K—Reardon54

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 names spelled this way(inferred from the name graph)

Reardon is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • Russian surname8 spellings in the group

    Most recorded in United States, Russia, United Kingdom, Ukraine

    Languages: Russian, Ukrainian

    Also written Рирдон, Реардон, Rirdon, Ріардон

45 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

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)

190019201940196019802000Casper Reardon, b. 1907Betty Reardon, b. 1929John Reardon, b. 1930Ray Reardon, b. 1932Jeff Reardon, b. 1955Jim Reardon, b. 1965John Reardon, b. 1975Stuart Reardon, b. 1981Rosanna Pansino, b. 1985

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)

FormalDear Reardon,
InformalHello,

Evidence(measured from records)

Attested in 18 sources across 10 countries.

Official registers attesting Reardon
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 2010201014K#2,509
US United StatesCensus Bureau — Surname Frequency 2000200014K#2,320
US United StatesCensus Bureau — Surname Frequency 2020202014K#2,564
GB United KingdomSurnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register)20022.7K#2,817
US United Stateswru 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 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.
How do you pronounce Reardon?
A machine transcription gives /ˈɹɪɹdən/ (IPA) for English.
In which country does Reardon have the most bearers?
Mondonomo estimates about 118 thousand people named Reardon in China, more than in any other country we hold, where it is most often spelled reardon.
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.

Please leave out anyone's personal details (see Privacy).

Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/reardon

The 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 2026-10-10.

See how Reardon parses inside a full name →