Izaks

surname · Latin script

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

/ɪzæks/(machine-generated) pronunciation, model-generated

Izaks is a surname written in the Latin script, with more bearers in South Africa than in any other country.

rarermore common
  • NANamibia≈1 in 9.8K(inferred from the name graph)
  • ZASouth Africa≈1 in 109K
  • NLNetherlands1 in 136K

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)

≈520 people, est.

Sources
35 (measured from records)

Highest-authority source

≈1 in 9.8K (inferred from the name graph)

Namibia, est.

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.

Where in the world(measured from records)

Izaks 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 Izaks is recorded, by country
CountryMost common spellingSources
ZA South Africa—≈520 est.≈1 in 109K—Izaks13
NA Namibia#483≈270 est.≈1 in 9.8K1Izaks7
NL Netherlands—1271 in 136K127Izaks16
US United States—≈27 est.≈1 in 12M—Izaks29
AU Australia—≈13 est.≈1 in 1.9M—Izaks35
LV Latvia—≈9 est.≈1 in 198K9—1

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: CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); PMLP — Personu vārdi (given names in population register); ECN Government Gazette 8791 — 2025 local authority candidates. 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)

Izaks is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • Latvian surname4 spellings in the group

    Most recorded in Latvia, United States

    Also written Īzaks, Īzāks, Izāks

  • Spanish surname5 spellings in the group

    Most recorded in United States, South Africa

    Languages: Spanish, Portuguese

    Also written Izāks, Īzaks

  • Polish surname2 spellings in the group

    Most recorded in Netherlands

    Also written Izāks

22 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.

How to address them(machine-generated)

FormalDear Mr Izaks,
InformalHi Izaks,

Evidence(measured from records)

Attested in 7 sources across 5 countries.

Official registers attesting Izaks
CountryRegisterYearCountRank
NL NetherlandsCBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007)2007127#15,630
NA NamibiaECN Government Gazette 8791 — 2025 local authority candidates20251#15

Reference works 1

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007

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

How do you pronounce Izaks?
A machine transcription gives /ɪzæks/ (IPA) for English.
In which country does Izaks have the most bearers?
Mondonomo estimates about 519 people named Izaks in South Africa, more than in any other country we hold, where it is most often spelled izaks.
How common is the name Izaks?
In the Netherlands, the national register counted 127 people named Izaks in 2007, about 1 in 136 thousand residents.
How common is Izaks compared with other names?
In Namibia, Izaks is the 483rd most common surname of 968 surnames recorded there.

What do you want to know about Izaks?

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

The 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, “Izaks” — the 483rd most common surname in Namibia. Data snapshot 2026-10-10.

See how Izaks parses inside a full name →