Seppänen

surname · Latin script

Seppänen is a surname written in the Latin script, with more bearers in Finland than in any other country. Recorded meaning: From seppä (“smith”) + -nen.

rarermore common
  • FIFinland1 in 333(measured from records)
  • SESweden1 in 44K
  • EEEstonia≈1 in 140K

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.

Finland (measured from records)

16,718 people

Sources
94 (measured from records)

Highest-authority source

1 in 333 (inferred from the name graph)

Finland

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 Seppanen in US United States, CA Canada, EG Egypt.

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 seppä (“smith”) + -nen.

Sources 1

Attested across 12 languages in the etymology graph.

Where in the world(measured from records)

Seppänen 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 Seppänen is recorded, by country
CountryMost common spellingSources
FI Finland#12016,7181 in 33317KSeppänen56
CN China—≈400 est.≈1 in 3.5M—Seppänen2
US United States—3611 in 921K396Seppanen94
SE Sweden—2311 in 44K231Seppänen20
EG Egypt—≈130 est.≈1 in 797K—Seppanen2
CA Canada—≈89 est.≈1 in 421K—Seppanen14
NO Norway—≈14 est.≈1 in 401K—Seppänen4
EE Estonia—≈9 est.≈1 in 140K8Seppänen4

16,718 people counted by DVV — Nimipalvelu (Finnish name service, per-name lookup). 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: DVV — Nimipalvelu (Finnish name service, per-name lookup); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; Skatteverket — Sök hur många som har ett visst namn (living population); Statistics Estonia — per-name Population Register counts (nimed). 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)

Seppänen is also recorded as 6 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname9 spellings in the group

    Most recorded in United States, Finland, Australia, Canada

    Languages: English, German, Dutch

    Also written Seppanen, Seppaenen

  • a separate name4 spellings in the group

    Also written Seppånen, Seppánen, Seppanen

  • French surname2 spellings in the group

    Most recorded in Finland, France, Belgium, United States

    Also written Seppanen

  • Turkish surname3 spellings in the group

    Most recorded in Finland

    Also written Seppanen

  • Hindi surname4 spellings in the group

    Most recorded in Finland, United States

    Also written Seppanen

  • Russian surname7 spellings in the group

    Most recorded in Russia, Finland

    Also written Сеппанен, Seppanen

23 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)

190019502000Unto Seppänen, b. 1904Severi Seppänen, b. 1917Lauri Seppänen, b. 1924Aimo Seppänen, b. 1929Esko Seppänen, b. 1946Pekka Seppänen, b. 1960Iiro Seppänen, b. 1975Erkki Seppänen, b. 1979Timo Seppänen, b. 1987Niklas Seppänen, b. 1993

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 12 sources across 7 countries.

Official registers attesting Seppänen
CountryRegisterYearCountRank
FI FinlandDVV — Nimipalvelu (Finnish name service, per-name lookup)—17K#71
FI FinlandDVV — Sukunimitilasto (Finnish surnames register)—7.4K—
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—231#3,695
EE EstoniaStatistics Estonia — per-name Population Register counts (nimed)—8#12,496
EE EstoniaStatistics Estonia — per-name Population Register counts (nimed)—8#12,979

Reference works 2

  • 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 Seppänen mean, and where does it come from?
From seppä (“smith”) + -nen. Recorded by Wiktionary.
What are other forms of the name Seppänen?
In the etymology graph, Seppälä and Seppä are forms of the same name in other languages.
In which country does Seppänen have the most bearers?
In Finland, the national register counted about 17 thousand people named Seppänen, more than in any other country we hold, where it is most often spelled seppänen.
Where is Seppänen most common?
Seppänen is densest in Finland, where the national register counts about 1 in 333 people carrying it.
How common is the name Seppänen?
In Finland, the national register counted 16,718 people named Seppänen, about 1 in 333 residents.
How common is Seppänen compared with other names?
In Finland, Seppänen is the 120th most common surname of 94,499 surnames recorded there.

What do you want to know about Seppänen?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/sepp%C3%A4nen

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, “Seppänen” — the 120th most common surname in Finland. Data snapshot 2026-10-10.

See how Seppänen parses inside a full name →