Knjaz
surname · Latin script
Knjaz is a surname written in the Latin script, with more bearers in the United States than in any other country.
- HRCroatia1 in 41K(measured from records)
- KZKazakhstan1 in 251Kas Княз
- PLPoland1 in 425Kas Kniaz
carrying the name, as counted by each country's national register. Where a country counts another spelling of the name rather than Knjaz 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.
- United States (measured from records)
- 2 (measured from records)
- Sources
- 17 (measured from records)
- 1 in 41K (inferred from the name graph)
150 named Kniaz, 2010
recorded for this name
Highest-authority source
Croatia
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Kniaz in US United States.
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 across 2 languages in the etymology graph.
Where in the world(measured from records)
Knjaz 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 | |||
|---|---|---|---|---|---|
| US United States | 150as Kniaz | 1 in 2.2M | 162 | Kniaz | 2 |
| HR Croatia | 104 | 1 in 41K | 104 | Knjaz | 17 |
| PL Poland | 90as Kniaz | 1 in 425K | 48 | — | — |
| KZ Kazakhstan | 76as Княз | 1 in 251K | 76 | — | 1 |
| AR Argentina | 17as Kniaz | 1 in 2.7M | 17 | — | — |
150 people counted by Census Bureau — Surname Frequency 2010, 2010. 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: DZS — Imena i prezimena (per-token lookup form); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; 2021 National Population Census — popular surnames of Kazakhs, by region of residence; dane.gov.pl — PESEL living persons (surnames); RENAPER — Apellidos (person counts, national). 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).
Other recorded senses(measured from records)
Knjaz is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Swedish, a knyaz, a prince (in medieval Russia)
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.
Evidence(measured from records)
Attested in 3 sources across 2 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| HR Croatia | DZS — Imena i prezimena (per-token lookup form) | 2021 | 104 | #7,665 |
| HR Croatia | DZS — Učestalost prezimena (Popis 2021) | 2021 | 91 | — |
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- In which country does Knjaz have the most bearers?
- In the United States, the national register counted about 150 people named Kniaz, more than in any other country we hold.
- Where is Knjaz most common?
- Measured as a share of residents rather than as a count, Knjaz is densest in Croatia — about 1 in 41 thousand people — even though United States holds more of our records for it.
- How common is the name Knjaz?
- In Croatia, the national register counted 104 people named Knjaz in 2021, about 1 in 41 thousand residents.
What do you want to know about Knjaz?
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/knjazThe 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, “Knjaz”. Data snapshot 2026-10-10.