Sias
surname · Latin script
(measured from records)Officially recorded in 12 countries · latest register: Census Bureau, 2020
/sjas/(machine-generated) Spanish · model-generated · uncertain
Sias is a surname written in the Latin script, with more bearers in the United States than in any other country: 3,112 people, counted by the Census Bureau in 2010. Sias is also written Σιας in Greek.
- ZASouth Africa≈1 in 27Kfew records(inferred from the name graph)
- ITItaly≈1 in 40Kfew records
- PEPeru≈1 in 41Kfew records
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- 2 (measured from records)
- Record sources
- 271 (measured from records)
- ≈1 in 27K (inferred from the name graph)
3,112 people, 2010
recorded for this name
corpus datasets behind its best-documented spelling
strongest: highest-authority source
South Africa, est.
measured from records inferred from the name graph
Sias in other scripts: Greek
(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.
How to pronounce Sias
- Spanish:/sjas/(machine-generated) model-generated
- Portuguese:/ziɐʃ/(machine-generated) model-generated
Readings marked model-generated were transcribed by a model; the others are quoted from the dictionary named.
Meaning & origin
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Attested across 9 languages in the etymology graph.
Where the surname Sias is found
(measured from records)Sias 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 | |||
|---|---|---|---|---|---|
| US United States | 3,112 | 1 in 107K | 3.4K | Sias | 271 |
| MX Mexico | ≈2,400 est. | ≈1 in 54K | 39 | — | — |
| ZA South Africa | ≈2,300 est. | ≈1 in 27K | — | Sias | 23 |
| IT Italy | ≈1,500 est. | ≈1 in 40K | listed | Sias | 27 |
| BR Brazil | 1,316 | 1 in 161K | 1.3K | — | 2 |
| PE Peru | ≈830 est. | ≈1 in 41K | — | Sias | 19 |
3,112 people counted by Census Bureau — Surname Frequency 2010, 2010. 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; Census Bureau — Surname Frequency 2000; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); the xinhua-italian-manual register; RENAPO — name frequencies (eduardofv dataset). 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).
Notable people with this name
(measured from records)- Don E. Siasb. 1894USAmerican politician (1894–1934)
- Carlo SiasITPh.D. Università di Pisa 2008
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)Evidence
(measured from records)19 registers and reference works attest this spelling, across 12 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- How do you pronounce Sias?
- It depends on the language: in Spanish /sjas/; in Portuguese /ziɐʃ/. Transcriptions are machine-generated except where a dictionary is named.
- Which countries have the most people with the surname Sias?
- In the United States, the national register counted about 3.1 thousand people named Sias, more than in any other country we hold, where it is most often spelled sias. After it come Mexico, South Africa, Italy and Brazil; the country table on this page ranks them.
- How common is the name Sias?
- In the United States, the national register counted 3,112 people named Sias in 2010, about 1 in 107 thousand residents.
What do you want to know about Sias?
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/siasThe 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, “Sias” — ranked 8884th in the United States (Census Bureau). Data snapshot 2026-10-13.