Isaák
surname · Latin script
Isaák is a surname written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: Borrowed from Latin Isaac, from Ancient Greek Ἰσαάκ (Isaák), from Hebrew יצחק (Yiṣḥāq, literally “he laughs”).
- CHSwitzerland1 in 36K(measured from records)
- NONorway1 in 171K
- USUnited States1 in 237K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.
- United States (measured from records)
- Record sources
- 14 (measured from records)
- 1 in 36K (inferred from the name graph)
1,403 people, 2010
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Switzerland
measured from records inferred from the name graph
Spellings & scripts
(measured from records)One other spelling is counted as the same name:
Locally spelled Isaak 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
(measured from records)- LatinIsaac(measured from records)
- Ancient GreekἸσαάκIsaák(measured from records)
- HebrewיצחקYiṣḥāq“he laughs”(measured from records)
Borrowed from Latin Isaac, from Ancient Greek Ἰσαάκ (Isaák), from Hebrew יצחק (Yiṣḥāq, literally “he laughs”).
Cited for this meaning 3
- Dictionary of American Family Names
- Wiktionary
- Nordic Names
Attested across 17 languages in the etymology graph.
Where in the world
(measured from records)Isaák 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 | 1,403 | 1 in 237K | 4K | Isaak | 5 |
| CH Switzerland | 236 | 1 in 36K | 236 | — | 1 |
| AR Argentina | 82 | 1 in 555K | 82 | — | — |
| HU Hungary | ≈46 est. | ≈1 in 207K | — | Isaák | 14 |
| IN India | 40 | 1 in 33M | 40 | — | 1 |
| NO Norway | 32 | 1 in 171K | 118 | — | — |
| DK Denmark | 13 | 1 in 451K | 79 | — | — |
1,403 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: Census Bureau — Surname Frequency 2010; Census Bureau — First Name Frequency 2020 by sex; BFS — Familiennamen der Wohnbevölkerung (surnames); SSB — Navnesøk (name-search service, living population); RENAPER — Apellidos (person counts, national); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); Instate — India surnames (clean spellings) from electoral rolls. 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)No register attests this spelling yet
Frequently asked questions
- What does the name Isaák mean, and where does it come from?
- Borrowed from Latin Isaac, from Ancient Greek Ἰσαάκ (Isaák), from Hebrew יצחק (Yiṣḥāq, literally “he laughs”). Recorded by Dictionary of American Family Names and Wiktionary and 1 other source.
- In which country does Isaák have the most bearers?
- In the United States, the national register counted about 1.4 thousand people named Isaák, more than in any other country we hold, where it is most often spelled isaak.
- Where is Isaák most common?
- Measured as a share of residents rather than as a count, Isaák is densest in Switzerland — about 1 in 36 thousand people — even though United States holds more of our records for it.
- How common is the name Isaák?
- In the United States, the national register counted 1,403 people named Isaák in 2010, about 1 in 237 thousand residents.
What do you want to know about Isaák?
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/isa%C3%A1kThe 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, “Isaák”. Data snapshot 2026-10-13.