Helenius

surname · Latin script

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

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

Helenius is a surname written in the Latin script, with more bearers in Finland than in any other country. Recorded meaning: From Swedish Helenius.

rarermore common
  • FIFinland1 in 615(measured from records)
  • USUnited States1 in 2.2M
  • SESweden1 in 25K

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)

9,066 people

Sources
80 (measured from records)

Highest-authority source

1 in 615 (inferred from the name graph)

Finland

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin(measured from records)

From Swedish Helenius.

Sources 2

Where in the world(measured from records)

Helenius 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 Helenius is recorded, by country
CountryMost common spellingSources
FI Finland#2509,0661 in 6159.1KHelenius65
SE Sweden—4101 in 25K410Helenius27
BJ Benin—≈330 est.≈1 in 39K—Helenius2
US United States—1491 in 2.2M150Helenius80
DK Denmark—941 in 62K94——
EE Estonia—≈5 est.≈1 in 234K8Helenius5

9,066 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); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); 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)

Helenius is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

  • Swedish surname6 spellings in the group

    Most recorded in Sweden, Denmark, Finland, United States

    Languages: Swedish, Danish, Norwegian

    Also written Helénius

  • Russian surname4 spellings in the group

    Most recorded in Finland, Russia

    Also written Хелениус

33 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)

18501900195020002050Ester Helenius, b. 1875Helmi Lindelöf, b. 1884Lennart Heljas, b. 1896Veli Helenius, b. 1910Reino Helismaa, b. 1913Kai Helenius, b. 1931Sami Helenius, b. 1974Robert Helenius, b. 1984Riku Helenius, b. 1988Samuel Helenius, b. 2002

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 Helenius,
InformalHello,

Evidence(measured from records)

Attested in 24 sources across 12 countries.

Official registers attesting Helenius
CountryRegisterYearCountRank
FI FinlandDVV — Nimipalvelu (Finnish name service, per-name lookup)—9.1K#176
FI FinlandDVV — Sukunimitilasto (Finnish surnames register)—3.7K—
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—410#2,223
US United StatesCensus Bureau — Surname Frequency 20202020150#121,361
US United StatesCensus Bureau — Surname Frequency 20102010149#116,829
US United StatesCensus Bureau — Surname Frequency 20002000130#122,534
DK DenmarkDanmarks Statistik — Hvor mange hedder...? (living-population name counts)—94#5,833
EE EstoniaStatistics Estonia — per-name Population Register counts (nimed)—8#12,979
EE EstoniaStatistics Estonia — per-name Population Register counts (nimed)—8#12,496
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 surname tokens
  • Wikidata name items (native-script + romanized given/family names)
  • Søndergaard, Georg, Danske efternavne (Lademann 1984/1991)

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 Helenius mean, and where does it come from?
From Swedish Helenius. Recorded by Wiktionary and Nordic Names.
How do you pronounce Helenius?
A machine transcription gives /hɛliːnɪəs/ (IPA) for English.
In which country does Helenius have the most bearers?
In Finland, the national register counted about 9.1 thousand people named Helenius, more than in any other country we hold, where it is most often spelled helenius.
Where is Helenius most common?
Helenius is densest in Finland, where the national register counts about 1 in 615 people carrying it.
How common is the name Helenius?
In Finland, the national register counted 9,066 people named Helenius, about 1 in 615 residents.
How common is Helenius compared with other names?
In Finland, Helenius is the 250th most common surname of 94,499 surnames recorded there.

What do you want to know about Helenius?

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

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, “Helenius” — the 250th most common surname in Finland. Data snapshot 2026-10-10.

See how Helenius parses inside a full name →