Sium
surname · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Sium is a surname written in the Latin script, with more bearers in Norway than in any other country.
- NONorway1 in 19K(measured from records)
- SESweden1 in 44K
- CHSwitzerland1 in 52K
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.
- Norway (measured from records)
- 2 (measured from records)
- Sources
- 22 (measured from records)
- 1 in 19K (inferred from the name graph)
282 people
recorded for this name
Highest-authority source
Norway
measured from records inferred from the name graph
Spellings & scripts(measured from records)
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.
Where in the world(measured from records)
Sium 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.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| NO Norway | — | 282 | 1 in 19K | 282 | — | 2 |
| SE Sweden | — | 232 | 1 in 44K | 232 | Sium | 4 |
| CH Switzerland | — | 162 | 1 in 52K | 162 | — | 1 |
| US United States | — | 110 | 1 in 3M | 199 | Sium | 22 |
| DK Denmark | — | 45 | 1 in 130K | 45 | — | — |
| NL Netherlands | — | 40 | 1 in 432K | 40 | Sium | 2 |
| ER Eritrea | #123 | — | — | — | Sium | 4 |
282 people counted by SSB — Navnesøk (name-search service, 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: SSB — Navnesøk (name-search service, living population); Skatteverket — Sök hur många som har ett visst namn (living population); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; BFS — Familiennamen der Wohnbevölkerung (surnames); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007). 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)
Sium is also recorded in 6 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In got, romanization of 𐍃𐌹𐌿𐌼
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In fur, sleep, slumber
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In mzs, sir, Mr, Mr.
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In woe, giant clam
as a wordAustronesian Comparative Dictionary (ACD), CLDF v2.0
In Romanian, COSIȚÉL, cosiței, s. m. Plantă erbacee din familia umbeliferelor, cu rădăcina fibroasă, cu frunze mici, lunguiețe și dințate și cu flori albe (Sium latifolium).
as a wordDEX online (dexonline.ro) - DEX '96 / DEX '98 definitions with etymology
In Latvian, Cemeres
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.
Evidence(measured from records)
Attested in 14 sources across 8 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| NO Norway | SSB — Navnesøk (name-search service, living population) | — | 282 | #5,463 |
| SE Sweden | Skatteverket — Sök hur många som har ett visst namn (living population) | — | 232 | #3,691 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 199 | #97,730 |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 162 | #7,462 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 110 | #149,395 |
| DK Denmark | Danmarks Statistik — Hvor mange hedder...? (living-population name counts) | — | 45 | #11,528 |
| NL Netherlands | CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007) | 2007 | 40 | #35,203 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 3
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikidata name items (native-script + romanized given/family names)
- Ethiopian name tokens (GitHub lehagere/ethiopian-names, 40/60 condominium list)
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
- In which country does Sium have the most bearers?
- In Norway, the national register counted about 282 people named Sium, more than in any other country we hold.
- Where is Sium most common?
- Sium is densest in Norway, where the national register counts about 1 in 19 thousand people carrying it.
- How common is the name Sium?
- In Norway, the national register counted 282 people named Sium, about 1 in 19 thousand residents.
- How common is Sium compared with other names?
- In Eritrea, Sium is the 123rd most common surname of 152 surnames recorded there.
What do you want to know about Sium?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/siumThe 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, “Sium” — the 123rd most common surname in Eritrea. Data snapshot 2026-10-10.