Kostelac
surname · Latin script
Recorded as a male name· opposite-gender records fall within measured source noise
Kostelac is a surname written in the Latin script, with more bearers in Croatia than in any other country. Recorded meaning: variant of KostelNIK.
- HRCroatia1 in 4.8K(measured from records)
- SISlovenia1 in 117K
- RSSerbia≈1 in 216K
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.
- Croatia (measured from records)
- 2 (measured from records)
- Sources
- 58 (measured from records)
- 1 in 4.8K (inferred from the name graph)
877 people, 2021
recorded for this name
Highest-authority source
Croatia
measured from records inferred from the name graph
Spellings & scripts(measured from records)
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)
variant of KostelNIK.
Sources 1
- Dictionary of American Family Names
Where in the world(measured from records)
Kostelac 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 | ||||
|---|---|---|---|---|---|---|
| HR Croatia | #659 | 877 | 1 in 4.8K | 877 | Kostelac | 51 |
| US United States | — | 280 | 1 in 1.2M | 283 | Kostelac | 58 |
| CA Canada | — | ≈110 est. | ≈1 in 347K | — | Kostelac | 11 |
| RS Serbia | — | ≈32 est. | ≈1 in 216K | — | Kostelac | 7 |
| ZA South Africa | — | ≈22 est. | ≈1 in 2.6M | — | Kostelac | 5 |
| SI Slovenia | — | 18 | 1 in 117K | 18 | — | 2 |
| CH Switzerland | — | 18 | 1 in 467K | 18 | Kostelac | 3 |
877 people counted by DZS — Imena i prezimena (per-token lookup form), 2021. 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; stat.si Imena rojstva — full name register (per-token frequency + rank); BFS — Familiennamen der Wohnbevölkerung (surnames). 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).
Evidence(measured from records)
Attested in 15 sources across 8 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| HR Croatia | DZS — Imena i prezimena (per-token lookup form) | 2021 | 877 | #655 |
| HR Croatia | DZS — Učestalost prezimena (Popis 2021) | 2021 | 728 | — |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 283 | #73,776 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 280 | #69,996 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 279 | #66,274 |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 18 | #39,486 |
| SI Slovenia | stat.si Imena rojstva — full name register (per-token frequency + rank) | — | 18 | #14,369 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 3
- Dictionary of American Family Names
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- 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 Kostelac mean, and where does it come from?
- variant of KostelNIK. Recorded by Dictionary of American Family Names.
- In which country does Kostelac have the most bearers?
- In Croatia, the national register counted about 877 people named Kostelac, more than in any other country we hold, where it is most often spelled kostelac.
- Where is Kostelac most common?
- Kostelac is densest in Croatia, where the national register counts about 1 in 4.8 thousand people carrying it.
- How common is the name Kostelac?
- In Croatia, the national register counted 877 people named Kostelac in 2021, about 1 in 4.8 thousand residents.
- How common is Kostelac compared with other names?
- In Croatia, Kostelac is the 659th most common surname of 72,581 surnames recorded there.
What do you want to know about Kostelac?
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/kostelacThe same 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), 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, “Kostelac” — the 659th most common surname in Croatia. Data snapshot 2026-10-10.