Claeßen
surname · Latin script
Claeßen is a surname written in the Latin script, with more bearers in South Africa than in any other country.
- NLNetherlands1 in 8.5Kas Claessen(measured from records)
- ZASouth Africa≈1 in 16Kas Classen
- DEGermany≈1 in 28Kas Classen
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 Claeßen 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)
- 2 (measured from records)
- Sources
- 249 (measured from records)
- 1 in 8.5K (inferred from the name graph)
≈3,500 named Classen, est.
recorded for this name
Highest-authority source
Netherlands, as Claessen
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Classen in US United States, DE Germany, ZA South Africa and 1 more and Claessen in NL Netherlands, BE Belgium.
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 in the world(measured from records)
Claeßen 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 | — | ≈3,500 est. | ≈1 in 16K | — | Classen | 41 |
| DE Germany | — | ≈2,800 est. | ≈1 in 28K | — | Classen | 117 |
| NL Netherlands | #965 | 2,038as Claessen | 1 in 8.5K | 2K | Claessen | 66 |
| US United States | — | 1,900as Classen | 1 in 175K | 1.9K | Classen | 249 |
| BE Belgium | — | 872as Claessen | 1 in 13K | 872 | Claessen | 49 |
| DK Denmark | — | 61as Classen | 1 in 96K | 61 | Classen | 23 |
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 2020; CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); Familienaam.be — Belgian family-name frequency (population register); Danmarks Statistik — Hvor mange hedder...? (living-population name counts). 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)
- Matthias Claessenb. 1821DEnot in their usual namePrussian administrative official and district administrator (1821-1892)
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 1 sources across 0 countries.
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
- In which country does Claeßen have the most bearers?
- Mondonomo estimates about 3.5 thousand people named Classen in South Africa, more than in any other country we hold.
- Where is Claeßen most common?
- No national register we hold counts the spelling Claeßen itself. The densest figure for its family of spellings is Netherlands's: the national register counts about 1 in 8.5 thousand people named Claessen.
- How common is the name Claeßen?
- In the Netherlands, the national register counted 2,038 people named Claessen in 2007, about 1 in 8.5 thousand residents.
- How common is Claeßen compared with other names?
- In the Netherlands, Claeßen is the 965th most common surname of 284,143 surnames recorded there.
What do you want to know about Claeßen?
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/clae%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, “Claeßen” — the 965th most common surname in Netherlands. Data snapshot 2026-10-10.