Oestmann
surname · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Oestmann is a surname written in the Latin script, with more bearers in Congo - Kinshasa than in any other country.
- USUnited States1 in 1.1M(measured from records)
- DEGermany≈1 in 70Kas Ostmann
- SGSingapore≈1 in 130K
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 Oestmann 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.
- Congo - Kinshasa (inferred from the name graph)
- Sources
- 123 (measured from records)
- ≈1 in 130K (inferred from the name graph)
≈8,800 named Ostmann, est.
Highest-authority source
Singapore, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Ostmann in US United States, DE Germany, CD Congo - Kinshasa and 1 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 in the world(measured from records)
Oestmann 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 | ||||
|---|---|---|---|---|---|---|
| CD Congo - Kinshasa | #495 | ≈8,800 est. | ≈1 in 12K | — | Ostmann | 1 |
| DE Germany | — | ≈1,100 est. | ≈1 in 70K | — | Ostmann | 68 |
| US United States | — | 300 | 1 in 1.1M | 300 | Ostmann | 123 |
| IT Italy | — | ≈110 est. | ≈1 in 556K | — | Ostmann | 2 |
| BR Brazil | — | ≈86 est. | ≈1 in 2.4M | — | Oestmann | 15 |
| AU Australia | — | ≈55 est. | ≈1 in 459K | — | Oestmann | 20 |
| SG Singapore | — | ≈48 est. | ≈1 in 130K | — | Oestmann | 1 |
| NO Norway | — | 25as Østmann | 1 in 219K | 25 | — | 2 |
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; SSB — Navnesøk (name-search service, living population). 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)
- Karl-Dieter Oestmannb. 1934DEGerman politician
- Heinz Oestmannb. 1950DEGerman politician
- Peter Oestmannb. 1967DEGerman legal historian
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 7 sources across 3 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 300 | #65,964 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 296 | #71,105 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 239 | #75,219 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
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 Oestmann have the most bearers?
- Mondonomo estimates about 8.8 thousand people named Ostmann in Congo - Kinshasa, more than in any other country we hold.
- How common is the name Oestmann?
- In the United States, the national register counted 300 people named Oestmann in 2010, about 1 in 1.1 million residents.
- How common is Oestmann compared with other names?
- In Congo - Kinshasa, Oestmann is the 495th most common surname of 44,726 surnames recorded there.
What do you want to know about Oestmann?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/oestmannThe same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use; a free API key gives 1,000 requests a day, and bulk access is licensed separately.
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, “Oestmann” — the 495th most common surname in Congo - Kinshasa. Data snapshot 2026-10-10.