Ratzlaff
surname · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
/ˈɹætzɫəf/(machine-generated) pronunciation, model-generated
Ratzlaff is a surname written in the Latin script, with more bearers in China than in any other country. Recorded meaning: Germanized form of Slavic personal names such as Radoslav, Ratislav, etc.
- CACanada≈1 in 58K(inferred from the name graph)
- USUnited States1 in 134K
- NZNew Zealand≈1 in 31K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- China (inferred from the name graph)
- Sources
- 284 (measured from records)
- ≈1 in 31K (inferred from the name graph)
≈24,000 people, est.
Highest-authority source
New Zealand, est.
measured from records inferred from the name graph
Meaning & origin(measured from records)
Germanized form of Slavic personal names such as Radoslav, Ratislav, etc.
Sources 1
Attested in 1 language in the etymology graph.
Where in the world(measured from records)
Ratzlaff 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 | |||
|---|---|---|---|---|---|
| CN China | ≈24,000 est. | ≈1 in 59K | — | Ratzlaff | 1 |
| US United States | 2,476 | 1 in 134K | 2.5K | Ratzlaff | 284 |
| CA Canada | ≈650 est. | ≈1 in 58K | — | Ratzlaff | 80 |
| DE Germany | ≈590 est. | ≈1 in 136K | — | Ratzlaff | 62 |
| IT Italy | ≈400 est. | ≈1 in 157K | — | Ratzlaff | 2 |
| CL Chile | ≈170 est. | ≈1 in 105K | — | Ratzlaff | 1 |
| NZ New Zealand | ≈160 est. | ≈1 in 31K | — | Ratzlaff | 1 |
| PY Paraguay | ≈100 est. | ≈1 in 71K | — | Ratzlaff | 8 |
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. 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)
- Raymond Ratzlaffb. 1931CACanadian politician
- Siegfried Ratzlaffb. 1934DEGerman painter
- Leonard Ratzlaffb. 1949CACanadian conductor
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)
Attested in 13 sources across 6 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 2.5K | #12,519 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 2.4K | #11,859 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 2.4K | #12,339 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 4
- Wikipedia surname tokens
- Wikidata name items (native-script + romanized given/family names)
- Rymut, Słownik nazwisk współcześnie w Polsce używanych (10 vols, IJP PAN, Kraków 1992–1994) — every Polish surname in the PESEL register at the end of 1990, with bearer counts nationally and per voivodeship1990
- Hoffman, Polish Surnames: Origins and Meanings (2nd ed., 2012)
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 Ratzlaff mean, and where does it come from?
- Germanized form of Slavic personal names such as Radoslav, Ratislav, etc. Recorded by Wiktionary.
- How do you pronounce Ratzlaff?
- A machine transcription gives /ˈɹætzɫəf/ (IPA) for English.
- In which country does Ratzlaff have the most bearers?
- Mondonomo estimates about 24 thousand people named Ratzlaff in China, more than in any other country we hold, where it is most often spelled ratzlaff.
- How common is the name Ratzlaff?
- In the United States, the national register counted 2,476 people named Ratzlaff in 2010, about 1 in 134 thousand residents.
What do you want to know about Ratzlaff?
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/ratzlaffThe 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, “Ratzlaff”. Data snapshot 2026-10-10.