Sepp

surname · Latin script

Meaning: smith

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

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

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

rarermore common
  • DEGermany≈1 in 76K(inferred from the name graph)
  • USUnited States1 in 990K
  • EEEstonia1 in 687

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.

Estonia (measured from records)

1,789 people

Sources
151 (measured from records)

Highest-authority source

1 in 687 (inferred from the name graph)

Estonia

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin(measured from records)

smith

Sources 1

  • Russian Surnames

Attested across 28 languages in the etymology graph.

How Sepp is read(measured from records)

Sepp is one spelling over 4 language communities, and the dictionaries record it differently in 2 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.

  • English40%

    No dictionary in our sources glosses Sepp in English.

  • Estonian20%

    smith

    as a nameRussian Surnames

  • German18%

    from Josef/Joseph, Hebrew Yôsēf 'may he add'

    as a nameDeutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung

    from Joseph

    as a nameDeutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung

    männl. Vom., Kurzform von

    as a nameDUDEN Lexikon der Vornamen

  • Spanish5.7%

    No dictionary in our sources glosses Sepp in Spanish.

The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.

Where in the world(measured from records)

Sepp 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 Sepp is recorded, by country
CountryMost common spellingSources
EE Estonia#2231,7891 in 6871.8KSepp43
DE Germany—≈1,100 est.≈1 in 76KlistedSepp94
FI Finland—5201 in 11K520Sepp7
US United States—3361 in 990K336Sepp151
AT Austria—≈250 est.≈1 in 35K15Sepp68
SE Sweden—831 in 123K83Sepp10

1,789 people counted by Statistics Estonia — Ees- ja perekonnanimed (Population Register). 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; Statistics Estonia — Ees- ja perekonnanimed (Population Register); DVV — Nimipalvelu (Finnish name service, per-name lookup); Statistik Austria — STATatlas Vornamen WFS (per-name time series 1984–2024); Skatteverket — Sök hur många som har ett visst namn (living population). 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)

Sepp is also recorded as 4 other names, grouped separately because the records behind them do not connect to the one described above.

  • Estonian surname3 spellings in the group

    Most recorded in Estonia, United States, Spain, Finland

    Languages: Estonian, Finnish

    Also written Šepp

  • Spanish surname4 spellings in the group

    Most recorded in Brazil, Argentina, Spain, United States

    Languages: Spanish, Portuguese

    Also written Sépp

  • a separate name2 spellings in the group

    Also written Sépp

  • Croatian surname9 spellings in the group

    Most recorded in Estonia, Croatia

    Also written Шепп, Šepp, Сепп

43 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)

Sepp 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.

  • German (esp. Bavarian): short form of JOSEPH .

    as a word

  • In Latvian, Savstarpējās ekonomiskās palīdzības padome

    as a wordTēzaurs.lv (Dictionary and Thesaurus of Latvian, AiLab / LU MII)

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)

16001700180019002000Anton Sepp, b. 1655Jan Sepp, b. 1778Johann Nepomuk Sepp, b. 1816Hendrik Sepp, b. 1888Leo Sepp, b. 1892Eleonore Kastner, b. 1910Olav Sepp, b. 1969Ott Sepp, b. 1982Adeele Jaago, b. 1989Uudo Sepp, b. 1997
  • Anton Seppb. 1655BRItalian missionary (1655-1733)
  • Jan Seppb. 1778NLDutch botanist and entomologist (1778-1853)
  • Johann Nepomuk Seppb. 1816DEGerman historian and politician (1816-1909)
  • Hendrik Seppb. 1888EEEstonian historian (1888-1943)
  • Leo Seppb. 1892EEEstonian politician (1892-1941)
  • Eleonore Kastnerb. 1910DEnot in their usual nameGerman hairdresser (1910-2015)
  • Olav Seppb. 1969EEEstonian chess player (born 1969)
  • Ott Seppb. 1982EEEstonian actor (born 1982)
  • Adeele Jaagob. 1989EEnot in their usual nameEstonian actress (born 1989)
  • Uudo Seppb. 1997EEEstonian singer (born 1997)

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 Mr Sepp,
InformalHi Sepp,

Evidence(measured from records)

Attested in 51 sources across 24 countries.

Official registers attesting Sepp
CountryRegisterYearCountRank
EE EstoniaStatistics Estonia — Ees- ja perekonnanimed (Population Register)—1.8K#5
EE EstoniaStatistics Estonia — per-name Population Register counts (nimed)—1.8K#4
EE EstoniaStatistics Estonia — per-name Population Register counts (nimed)—1.7K#4
FI FinlandDVV — Nimipalvelu (Finnish name service, per-name lookup)—520#3,341
US United StatesCensus Bureau — Surname Frequency 20102010336#60,045
US United StatesCensus Bureau — Surname Frequency 20002000332#57,406
US United StatesCensus Bureau — Surname Frequency 20202020329#65,168
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—83#8,347
FI FinlandDVV — Sukunimitilasto (Finnish surnames register)—30—
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 6

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 Sepp mean, and where does it come from?
smith Recorded by Russian Surnames.
What are other forms of the name Sepp?
In the etymology graph, Pino, Pepito and Yusup are forms of the same name in other languages.
How do you pronounce Sepp?
A machine transcription gives /ˈsɛp/ (IPA) for English.
In which country does Sepp have the most bearers?
In Estonia, the national register counted about 1.8 thousand people named Sepp, more than in any other country we hold, where it is most often spelled sepp.
Where is Sepp most common?
Sepp is densest in Estonia, where the national register counts about 1 in 687 people carrying it.
How common is the name Sepp?
In Estonia, the national register counted 1,789 people named Sepp, about 1 in 687 residents.
How common is Sepp compared with other names?
In Estonia, Sepp is the 223rd most common surname of 37,297 surnames recorded there.

What do you want to know about Sepp?

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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

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, “Sepp” — the 223rd most common surname in Estonia. Data snapshot 2026-10-10.

See how Sepp parses inside a full name →