Stefánsson

surname · Latin script

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

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

rarermore common
  • SESweden1 in 11K(measured from records)
  • NONorway1 in 28K
  • DKDenmark1 in 58K

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

Sweden (measured from records)

889 people

Sources
82 (measured from records)

Highest-authority source

1 in 11K (inferred from the name graph)

Sweden

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled Stefansson in SE Sweden, US United States, NO Norway and 1 more.

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

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Attested across 19 languages in the etymology graph.

Where in the world(measured from records)

Stefánsson 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 Stefánsson is recorded, by country
CountryMost common spellingSources
SE Sweden8891 in 11K889Stefansson15
NO Norway1921 in 28K192Stefansson5
US United States1121 in 3M124Stefansson82
DK Denmark1021 in 58K102—2
FI Finland341 in 164K34——
CH Switzerland41 in 2.1M4Stefansson1

889 people counted by Skatteverket — Sök hur många som har ett visst namn (living population). 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: Skatteverket — Sök hur många som har ett visst namn (living population); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; SSB — Navnesøk (name-search service, living population); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); DVV — Nimipalvelu (Finnish name service, per-name lookup); 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 names spelled this way(inferred from the name graph)

Stefánsson is also recorded as 5 other names, grouped separately because the records behind them do not connect to the one described above.

  • Swedish surname11 spellings in the group

    Most recorded in Sweden, United States, Iceland, Denmark

    Languages: Swedish, Icelandic, Danish

    Also written Stefansson, Stefànsson, Stéfansson

  • a separate name4 spellings in the group

    Also written Stefänsson, Stefansson, Stefànsson

  • Portuguese surname2 spellings in the group

    Most recorded in United States

    Also written Stefansson

  • Arabic name3 spellings in the group

    Also written Stefansson

  • a separate name2 spellings in the group

    Also written Stefansson

14 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.

Notable people with this name(measured from records)

18501900195020002050Jón Stefánsson, b. 1862Vilhjalmur Stefansson, b. 1879Davíð Stefánsson, b. 1895Janne Stefansson, b. 1935Árni Stefánsson, b. 1953Hannes Stefánsson, b. 1972Ólafur Stefánsson, b. 1973Stefán Karl Stefánsson, b. 1975Logi Pedro, b. 1992Vignir Vatnar Stefansson, b. 2003

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 Stefánsson,
InformalHello,

Evidence(measured from records)

Attested in 8 sources across 6 countries.

Official registers attesting Stefánsson
CountryRegisterYearCountRank
DK DenmarkDanmarks Statistik — Hvor mange hedder...? (living-population name counts)—39#13,099
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—27#20,573
CH SwitzerlandBFS — Familiennamen der Wohnbevölkerung (surnames)20244#118,617

Reference works 1

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007

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

How do you pronounce Stefánsson?
A machine transcription gives /stɛːfaunsɔːn/ (IPA) for Icelandic.
In which country does Stefánsson have the most bearers?
In Sweden, the national register counted about 889 people named Stefánsson, more than in any other country we hold, where it is most often spelled stefansson.
Where is Stefánsson most common?
Stefánsson is densest in Sweden, where the national register counts about 1 in 11 thousand people carrying it.
How common is the name Stefánsson?
In Sweden, the national register counted 889 people named Stefánsson, about 1 in 11 thousand residents.

What do you want to know about Stefánsson?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/stef%C3%A1nsson

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, “Stefánsson”. Data snapshot 2026-10-10.

See how Stefánsson parses inside a full name →