Adair

surname · Latin script

Meaning: from the Scottish male personal name Adair, a different form of Edgar

Recorded as a male name· opposite-gender records fall within measured source noise

Adair is a surname written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • USUnited States1 in 18K(measured from records)
  • CUCuba≈1 in 7.3K
  • CVCape Verde≈1 in 8.9K

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)

18,708 people, 2010

Sources
143 (measured from records)

Highest-authority source

≈1 in 7.3K (inferred from the name graph)

Cuba, est.

measured from records inferred from the name graph

Meaning & origin(measured from records)

from the Scottish male personal name Adair, a different form of Edgar

Sources 1

  • Encyclopedia of surnames [the complete companion to tracing your names history]

Where in the world(measured from records)

Adair 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 Adair is recorded, by country
CountryMost common spellingSources
US United States—18,7081 in 18K19KAdair143
GB United Kingdom—≈3,800 est.≈1 in 17KlistedAdair30
CA Canada—≈2,300 est.≈1 in 16K1Adair15
CU Cuba#329≈1,500 est.≈1 in 7.3K—Adair3
CO Colombia—≈1,300 est.≈1 in 39K—Adair25
NZ New Zealand—≈350 est.≈1 in 14K—Adair4
CV Cape Verde—≈66 est.≈1 in 8.9K1Adair2

18,708 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; Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender; CNE — Listas concorrentes (Eleicoes Legislativas 2026). 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)

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

  • English surname7 spellings in the group

    Most recorded in United States, United Kingdom, Canada, Australia

    Languages: English, German, Dutch

    Also written A'Dair, Adāir

69 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)

Adair is also recorded in 4 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In English, A male given name from Scottish Gaelic, of Scottish usage, equivalent to English Edgar.

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In English, Alaskan island

    as a namePronouncing Dictionary of Proper Names

  • In English, Adal<

    as a namePronouncing Dictionary of Proper Names

  • In Irish, A Scottish name prominent in Ulster. It is also occasionally an anglicized form of Ó Dáire, * formerly in Offaly. MIF (where Robin Adair is identified)

    as a nameThe Surnames of Ireland

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)

1700180019002000John Adair, b. 1757Robert Adair, b. 1763Jean Adair, b. 1873Tom Adair, b. 1913John Adair, b. 1934Gilbert Adair, b. 1944Sandra Adair, b. 1952Alice Adair, b. 1966Deb Adair, b. 1966Daniel Adair, b. 1975

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).

Evidence(measured from records)

Attested in 48 sources across 28 countries.

Official registers attesting Adair
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 2010201019K#1,927
US United StatesCensus Bureau — Surname Frequency 2020202018K#1,949
US United StatesCensus Bureau — Surname Frequency 2000200018K#1,834
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 4

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • Wikipedia given-name tokens
  • 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 Adair mean, and where does it come from?
from the Scottish male personal name Adair, a different form of Edgar Recorded by Encyclopedia of surnames [the complete companion to tracing your names history].
In which country does Adair have the most bearers?
In the United States, the national register counted about 19 thousand people named Adair, more than in any other country we hold, where it is most often spelled adair.
How common is the name Adair?
In the United States, the national register counted 18,708 people named Adair in 2010, about 1 in 18 thousand residents.
How common is Adair compared with other names?
In Cuba, Adair is the 329th most common surname of 21,589 surnames recorded there.

What do you want to know about Adair?

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

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, “Adair” — the 329th most common surname in Cuba. Data snapshot 2026-10-10.

See how Adair parses inside a full name →