Jefferies

surname · Latin script

Meaning: from OFr Geuffroi/Jeufroi/Jefroi, representing OG names later latinized as Galfridus/Gaufridus and Goisfridus/Gosfridus; first attested Goisfridus 1086 DB

(measured from records)Officially recorded in 8 countries · latest register: BFS, 2024

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

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

rarermore common
  • CHSwitzerland1 in 934K(measured from records)
  • ESSpain1 in 1.3M
  • USUnited States1 in 14Kas Jeffries

carrying the name, as counted by each country's national register. Where a country counts another spelling of the name rather than Jefferies itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

23,510 named Jeffries, 2010

2 (measured from records)

recorded for this name

Record sources
17 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 934K (inferred from the name graph)

Switzerland

measured from records inferred from the name graph

Spellings & scripts

(measured from records)
JeffriesLatin(measured from records)
ДжеффрисCyrillic(measured from records)

One other spelling is counted as the same name:

Locally spelled Jeffries in US United States.

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 OFr Geuffroi/Jeufroi/Jefroi, representing OG names later latinized as Galfridus/Gaufridus and Goisfridus/Gosfridus; first attested Goisfridus 1086 DB

Cited for this meaning 1

  • A Dictionary of English Surnames

Where in the world

(measured from records)

Jefferies 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 Jefferies is recorded, by country
CountryMost common spellingSources
US United States23,510as Jeffries1 in 14K24KJeffries17
ES Spain401 in 1.3M40——
GY Guyana37as Jeffreys1 in 20K37——
FI Finland23as Jeffries1 in 242K23——
NO Norway22as Jeffries1 in 249K22——
CH Switzerland91 in 934K9——
GD Grenada1as Jeffreys1 in 113K1——

23,510 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; INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); Guyana — Official List of Electors July 2025; DVV — Nimipalvelu (Finnish name service, per-name lookup); SSB — Navnesøk (name-search service, living population); BFS — Familiennamen der Wohnbevölkerung (surnames); Grenada — Consolidated List of Electors December 2025. 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)

Jefferies 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, patronymic from Jeffrey.

    as a nameDictionary of American Family Names

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)
18001850190019502000Richard Jefferies, b. 1848Richard Manning Jefferies, b. 1889Matt Jefferies, b. 1921Jim Jefferies, b. 1950Richard Jefferies, b. 1956Gregg Jefferies, b. 1967Chris Jefferies, b. 1980Axcil Jefferies, b. 1994Nikkita Lyons, b. 1999Mike Jefferies, b. 2000

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 Jefferies,
InformalHello,

Evidence

(measured from records)

17 registers and reference works attest this spelling, across 8 countries.

Official registers attesting Jefferies
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 202020205K#6,513
US United StatesCensus Bureau — Surname Frequency 200020005K#6,306
US United StatesCensus Bureau — Surname Frequency 201020105K#6,809
ES SpainINE — Apellidos más frecuentes (Padrón Municipal)—40#52,571
ES SpainINE — Padrón per-token widgets (current living counts, given + apellidos)—40#51,690
CH SwitzerlandBFS — Familiennamen der Wohnbevölkerung (surnames)20249#65,843
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 4

  • Dictionary of American Family Names
  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • 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 Jefferies mean, and where does it come from?
from OFr Geuffroi/Jeufroi/Jefroi, representing OG names later latinized as Galfridus/Gaufridus and Goisfridus/Gosfridus; first attested Goisfridus 1086 DB Recorded by A Dictionary of English Surnames.
How do you pronounce Jefferies?
A machine transcription gives /ˈdʒɛfɹiz/ (IPA) for English.
In which country does Jefferies have the most bearers?
In the United States, the national register counted about 24 thousand people named Jeffries, more than in any other country we hold.
Where is Jefferies most common?
Measured as a share of residents rather than as a count, Jefferies is densest in Switzerland — about 1 in 934 thousand people — even though United States holds more of our records for it.
How common is the name Jefferies?
In Spain, the national register counted 40 people named Jefferies, about 1 in 1.3 million residents.

What do you want to know about Jefferies?

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

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, “Jefferies”. Data snapshot 2026-10-13.

See how Jefferies parses inside a full name →