Theunißen
surname · Latin script
Theunißen is a surname written in the Latin script, with more bearers in South Africa than in any other country.
- NLNetherlands1 in 3.6Kas Theunissen(measured from records)
- ZASouth Africa≈1 in 6.6Kas Theunissen
- BEBelgium1 in 7Kas Theunissen
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Theunißen itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.
- South Africa (inferred from the name graph)
- Record sources
- 133 (measured from records)
- 1 in 3.6K (inferred from the name graph)
≈9,700 named Theunissen, est.
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Netherlands, as Theunissen
measured from records inferred from the name graph
Theunißen in other scripts: Latin
(measured from records)Locally spelled Theunissen in NL Netherlands, ZA South Africa, US United States and 3 more.
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.
Attested in 1 language in the etymology graph.
Where the surname Theunißen is found
(measured from records)Theunißen 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 | ||||
|---|---|---|---|---|---|---|
| ZA South Africa | #767 | ≈9,700 est. | ≈1 in 6.6K | — | Theunissen | 53 |
| NL Netherlands | #333 | 4,850as Theunissen | 1 in 3.6K | 4.8K | Theunissen | 98 |
| BE Belgium | #681 | 1,679as Theunissen | 1 in 7K | 1.7K | Theunissen | 52 |
| DE Germany | — | ≈710 est. | ≈1 in 117K | — | Theunissen | 69 |
| US United States | — | 270as Theunissen | 1 in 1.2M | 307 | Theunissen | 133 |
| AU Australia | — | ≈160 est. | ≈1 in 167K | — | Theunissen | 58 |
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: CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; Familienaam.be — Belgian family-name frequency (population register). 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).
Evidence
(measured from records)No register attests this spelling yet
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Which countries have the most people with the surname Theunißen?
- Mondonomo estimates about 9.7 thousand people named Theunissen in South Africa, more than in any other country we hold. After it come Netherlands, Belgium, Germany and United States; the country table on this page ranks them.
- Where is Theunißen most common?
- No national register we hold counts the spelling Theunißen itself. The densest figure for its family of spellings is Netherlands's: the national register counts about 1 in 3.6 thousand people named Theunissen.
- How common is the name Theunißen?
- In the Netherlands, the national register counted 4,850 people named Theunissen in 2007, about 1 in 3.6 thousand residents.
- How common is Theunißen compared with other names?
- In South Africa, Theunißen is the 767th most common surname of 285,788 surnames recorded there.
What do you want to know about Theunißen?
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/theuni%C3%9FenThe 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, “Theunißen” — the 767th most common surname in South Africa. Data snapshot 2026-10-13.