Izak

given name · Latin script

Recorded as a male name· opposite-gender records fall within measured source noise

Izak is a given name written in the Latin script, with more bearers in South Africa than in any other country.

rarermore common
  • ZASouth Africa≈1 in 3.9K(inferred from the name graph)
  • USUnited States1 in 210K
  • SISlovenia1 in 1.9K

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.

South Africa (inferred from the name graph)

≈14,000 people, est.

Sources
176 (measured from records)

Highest-authority source

1 in 1.9K (inferred from the name graph)

Slovenia

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Sources 1

Attested across 19 languages in the etymology graph.

Where in the world(measured from records)

Izak 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.

Where Izak is recorded, by country
CountryMost common spellingSources
ZA South Africa#576≈14,000 est.≈1 in 3.9K—Izak70
US United States—1,5851 in 210K1.6KIzak176
NL Netherlands—1,1741 in 15K1.2KIzak25
SI Slovenia—1,1051 in 1.9K1.2KIzak7
BR Brazil—8821 in 240K882Izak42
SE Sweden—1621 in 63K162Izak7
HR Croatia—591 in 72K150——

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 — First Name Frequency 2020 by sex; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); SURS — resident population given names; stat.si Imena rojstva — full name register (per-token frequency + rank); IBGE — names by decade (Kaggle mirror); Skatteverket — Sök hur många som har ett visst namn (living population); DZS — Imena i prezimena (per-token lookup form); DZS — Učestalost osobnih imena (Popis 2021). 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 names spelled this way(inferred from the name graph)

Izak is also recorded as 7 other names, grouped separately because the records behind them do not connect to the one described above.

  • French given name6 spellings in the group

    Most recorded in France, South Africa, United States, Canada

    Also written Izäk, Izàk, Îzàk, Izák

  • Polish given name4 spellings in the group

    Most recorded in United States, Poland, South Africa

    Also written Iżak, Izák, Izäk

  • Slovak surname8 spellings in the group

    Most recorded in Slovakia, Czechia

    Languages: Slovak, Czech

    Also written Izák, Ižák, Ižak

  • Croatian given name19 spellings in the group

    Most recorded in Croatia, Slovenia, United States, Serbia

    Languages: Croatian, Slovenian, Bulgarian

    Also written Ižak, Isac, Изак, Isač, Izäk

  • Turkish given name3 spellings in the group

    Most recorded in Türkiye, United States, South Africa, United Kingdom

    Languages: Turkish, Azerbaijani

    Also written Ižák

  • a separate name5 spellings in the group

    Also written Ižak, Ižák, Izák, Izaḳ

  • Arabic given name9 spellings in the group

    Most recorded in Algeria, Egypt, United States, South Africa

    Also written Ïzäk, Ĭzàk, Izaķ, Ïzâk, Izàk

32 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Other recorded senses(measured from records)

Izak 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 Polish, a male given name, equivalent to English Isaac

    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)

1850190019502000Izak Buys, b. 1895Izak Aloni, b. 1905Izak Fanus, b. 1919Izak Parviz Nazarian, b. 1929Izak Barnard, b. 1933Eric Wesdorp, b. 1947Izak Davel, b. 1983Izak van der Merwe, b. 1984Izak Reid, b. 1987Izak Ogoai, b. 1989

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).

Evidence(measured from records)

Attested in 61 sources across 31 countries.

Official registers attesting Izak
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 20202020128#136,082
US United StatesCensus Bureau — Surname Frequency 20102010116#143,149
US United StatesCensus Bureau — Surname Frequency 20002000101#149,328
SI Sloveniastat.si Imena rojstva — full name register (per-token frequency + rank)—54#7,245
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 7

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

Is Izak a male or female name?
Izak is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
What are other forms of the name Izak?
In the etymology graph, Isaac, Issac and Ike are forms of the same name in other languages.
In which country does Izak have the most bearers?
Mondonomo estimates about 14 thousand people named Izak in South Africa, more than in any other country we hold, where it is most often spelled izak.
Where is Izak most common?
Measured as a share of residents rather than as a count, Izak is densest in Slovenia — about 1 in 1.9 thousand people — even though South Africa holds more of our records for it.
How common is the name Izak?
In the United States, the national register counted 1,585 people named Izak in 2020, about 1 in 210 thousand residents.
How common is Izak compared with other names?
In South Africa, Izak is the 576th most common given name of 189,620 given names recorded there.

What do you want to know about Izak?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/izak

The 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, “Izak” — the 576th most common given name in South Africa. Data snapshot 2026-10-10.

See how Izak parses inside a full name →