Kalous
surname · Latin script
Meaning: from kalous ‘homed owl’, evidently a nickname for someone thought to resemble the bird
(measured from records)Officially recorded in 7 countries · latest register: BFS, 2024
/ˈkalou̯s/(recorded in a dictionary) Czech · from Wiktionary
Kalous is a surname written in the Latin script, with more bearers in Czechia than in any other country.
- CZCzechia1 in 9.3K(measured from records)
- SKSlovakia1 in 419K
- USUnited States1 in 796K
carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.
- Czechia (measured from records)
- Record sources
- 52 (measured from records)
- 1 in 9.3K (inferred from the name graph)
1,155 people
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Czechia
measured from records inferred from the name graph
Meaning & origin
(measured from records)from kalous ‘homed owl’, evidently a nickname for someone thought to resemble the bird.
Cited for this meaning 1
- Dictionary of American Family Names
Where in the world
(measured from records)Kalous 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 | |||
|---|---|---|---|---|---|
| CZ Czechia | 1,155 | 1 in 9.3K | 1.2K | Kalous | 52 |
| US United States | 418 | 1 in 796K | 418 | Kalous | 13 |
| SK Slovakia | 13 | 1 in 419K | 13 | Kalous | 3 |
| AR Argentina | 12 | 1 in 3.8M | 12 | Kalous | 13 |
| CH Switzerland | 3 | 1 in 2.8M | 3 | — | — |
1,155 people counted by MVČR — living population register 2017. 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: MVČR — living population register 2017; Census Bureau — Surname Frequency 2010; RENAPER — Apellidos (person counts, national); JÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census); 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).
Other recorded senses
(measured from records)Kalous 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 Czech, any owl of the genus Asio
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.
Notable people with this name
(measured from records)- Václav Kalousb. 1715CZCzech music educator, composer, organist and roman catholic priest
- Ferdinand Kalousb. 1836CZCzech Roman-Catholic priest
- Josef Kalousb. 1847ATAustrian merchant, local politician and art collector
- Josef Kalousb. 1887ATAustrian artist
- Josef Kalousb. 1889CZCzech architect (1889-1958)
- Jiří Kalousb. 1964CZCzech ice hockey player
- Miroslav Kalousb. 1965CZCzech politician and entrepreneur
- Lukáš Kalousb. 1974CZresearcher
- Jan Kalousb. 1979CZCzech actor (1979–2018)
- Adam Kalousb. 1979CZCzech politician
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)15 registers and reference works attest this spelling, across 7 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| CZ Czechia | MVČR — living population register 2017 | — | 1.2K | #1,129 |
| CZ Czechia | KdeJsme.cz — četnost jmen a příjmení (MVČR population register front-end) | — | 1.2K | #1,126 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 418 | #50,106 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 377 | #58,182 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 373 | #52,289 |
| SK Slovakia | JÚĽŠ SAV — Databáza priezvisk na Slovensku (surname database, 1995 census) | 1995 | 13 | — |
| AR Argentina | RENAPER — Apellidos (person counts, national) | — | 12 | — |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 3 | #154,370 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 4
- Dictionary of American Family Names
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikipedia surname tokens
- 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 Kalous mean, and where does it come from?
- from kalous ‘homed owl’, evidently a nickname for someone thought to resemble the bird. Recorded by Dictionary of American Family Names.
- How do you pronounce Kalous?
- In Czech /ˈkalou̯s/ (Wiktionary).
- In which country does Kalous have the most bearers?
- In Czechia, the national register counted about 1.2 thousand people named Kalous, more than in any other country we hold, where it is most often spelled kalous.
- Where is Kalous most common?
- Kalous is densest in Czechia, where the national register counts about 1 in 9.3 thousand people carrying it.
- How common is the name Kalous?
- In Czechia, the national register counted 1,155 people named Kalous, about 1 in 9.3 thousand residents.
What do you want to know about Kalous?
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/kalousThe 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, “Kalous”. Data snapshot 2026-10-13.