Onnis
surname · Latin script
Meaning: a surname from Sardinian (kaikki.org Wiktionary extract (IPA + transliterations))
(measured from records)Officially recorded in 10 countries · latest register: BFS, 2024
/onnis/(machine-generated) Italian · model-generated
Onnis is a surname written in the Latin script, with more bearers in Italy than in any other country.
- ITItaly≈1 in 23Kfew records(inferred from the name graph)
- CHSwitzerland1 in 467K
- FRFrance≈1 in 490K
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.
- Italy (inferred from the name graph)
- Record sources
- 40 (measured from records)
- ≈1 in 23K (inferred from the name graph)
≈2,600 people, est.
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Italy, est.
measured from records inferred from the name graph
Spellings & scripts
(measured from records)Locally spelled Õnnis in EE Estonia.
How to pronounce Onnis
- Italian:/onnis/(machine-generated) model-generated
Readings marked model-generated were transcribed by a model; the others are quoted from the dictionary named.
Meaning & origin
(measured from records)a surname from Sardinian
Cited for this meaning 1
- kaikki.org Wiktionary extract (IPA + transliterations)
Where the surname Onnis is found
(measured from records)Onnis 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.
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: the xinhua-italian-manual register; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); RENAPER — Apellidos (person counts, national); INSEE — Fichier des noms de famille (1891–2000); BFS — Familiennamen der Wohnbevölkerung (surnames); 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).
Notable people with this name
(measured from records)- Giovanni Melis Onnisb. 1939ITItalian dialectologist (born 1939)
- Maurizio Onnisb. 1963ITItalian writer (1963–)
- Omar Onnisb. 1969ITSardinian historian and writer
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)13 registers and reference works attest this spelling, across 10 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Onnis mean, and where does it come from?
- a surname from Sardinian Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
- How do you pronounce Onnis?
- In Italian /onnis/. Transcriptions are machine-generated except where a dictionary is named.
- Which countries have the most people with the surname Onnis?
- Mondonomo estimates about 2.6 thousand people named Onnis in Italy, more than in any other country we hold, where it is most often spelled onnis. After it come France, Brazil, Germany and Argentina; the country table on this page ranks them.
- How common is the name Onnis?
- In Brazil, the national register counted 45 people named Onnis, about 1 in 4.7 million residents.
What do you want to know about Onnis?
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/onnisThe 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, “Onnis”. Data snapshot 2026-10-13.