Claaßen
surname · Latin script
Meaning: Patronymischer Familienname zu Nikolaus; schwacher Genitiv bzw
Claaßen is a surname written in the Latin script, with more bearers in South Africa than in any other country.
- ZASouth Africa≈1 in 3.9Kas Claassen(inferred from the name graph)
- NLNetherlands1 in 5Kas Claassen
- DEGermany≈1 in 53Kas Claassen
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 Claaßen 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)
- Sources
- 222 (measured from records)
- ≈1 in 3.9K (inferred from the name graph)
≈15,000 named Claassen, est.
Highest-authority source
South Africa, est., as Claassen
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Claassen in US United States, ZA South Africa, NL Netherlands 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(measured from records)
Patronymischer Familienname zu Nikolaus; schwacher Genitiv bzw. -sen-Form. 2157 Belege.
Sources 1
- Deutscher Familiennamenatlas, Band 3: Morphologie der Familiennamen
Attested in 1 language in the etymology graph.
Where in the world(measured from records)
Claaßen 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 | #442 | ≈15,000 est. | ≈1 in 3.9K | — | Claassen | 78 |
| NL Netherlands | #527 | 3,423as Claassen | 1 in 5K | 3.4K | Claassen | 73 |
| DE Germany | — | ≈1,500 est. | ≈1 in 53K | — | Claassen | 95 |
| US United States | — | 1,406as Claassen | 1 in 237K | 1.4K | Claassen | 222 |
| AO Angola | — | ≈870 est. | ≈1 in 37K | — | Claassen | 3 |
| BE Belgium | — | 276as Claassen | 1 in 42K | 311 | Claassen | 28 |
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; CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); Familienaam.be — Belgian family-name frequency (population register); Statbel — Noms de famille (family names). 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)
- Hermann Claaßenb. 1856PLGerman chemist
- Reinhard Claaßenb. 1886DEGerman architect (1886-1960)
- Frank Claaßenb. 1967DEGerman association football player
- Christian Claaßenb. 1969DEGerman footballer
- Kathrin Claaßenb. 1989DEGerman association football player
- Larissa Claaßenb. 1995DEGerman (beach) volleyball player
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).
Evidence(measured from records)
Attested in 3 sources across 1 country.
Reference works 1
- Wikidata name items (native-script + romanized given/family names)
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 Claaßen mean?
- Recorded meaning: Patronymischer Familienname zu Nikolaus; schwacher Genitiv bzw.
- In which country does Claaßen have the most bearers?
- Mondonomo estimates about 15 thousand people named Claassen in South Africa, more than in any other country we hold.
- How common is the name Claaßen?
- In the Netherlands, the national register counted 3,423 people named Claassen in 2007, about 1 in 5.0 thousand residents.
- How common is Claaßen compared with other names?
- In South Africa, Claaßen is the 442nd most common surname of 285,788 surnames recorded there.
What do you want to know about Claaßen?
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/claa%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, “Claaßen” — the 442nd most common surname in South Africa. Data snapshot 2026-10-10.