Irenäus

given name · Latin script

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

Irenäus is a given name written in the Latin script, with more bearers in Nigeria than in any other country. Recorded meaning: in Deutschland seit dem 17.

rarermore common
  • DEGermany≈1 in 818K(inferred from the name graph)
  • PLPoland1 in 4.8M
  • NLNetherlands1 in 182Kas Irenaeus

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Irenäus itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

Nigeria (inferred from the name graph)

≈160 named Irenaeus, est.

Sources
37 (measured from records)

Highest-authority source

≈1 in 818K (inferred from the name graph)

Germany, est.

measured from records inferred from the name graph

Spellings & scripts(measured from records)

IrenaeusLatin(measured from records)

One other spelling is counted as the same name:

Locally spelled Irenaeus in US United States, NL Netherlands, NG Nigeria and 2 more.

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)

recorded in German

in Deutschland seit dem 17. Jh. ver­ einzelt vorkommender männl. Vom. grie­ chisch-lateinischen Ursprungs (zu griech. tifënë »Frieden«). Namenspatron ist der heilige Irenäus, Bischof von Lyon, Kirchen­ lehrer (2./3.JI1.); N a m e n s t a g : 28. Juni.

Sources 1

  • DUDEN Lexikon der Vornamen

Attested in 1 language in the etymology graph.

Where in the world(measured from records)

Irenäus 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 Irenäus is recorded, by country
CountryMost common spellingSources
NG Nigeria≈160 est.≈1 in 1.3M—Irenaeus7
DE Germany≈98 est.≈1 in 818KlistedIrenäus28
NL Netherlands95as Irenaeus1 in 182K95Irenaeus12
MY Malaysia≈42 est.≈1 in 779K—Irenaeus8
US United States≈31 est.≈1 in 11M5Irenaeus37
LB Lebanon≈11 est.≈1 in 506K—Irenaeus1
PL Poland81 in 4.8M8—1
GY Guyana1as Irenaeus1 in 750K1—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: SSA — National Baby Names (1880–present); the de-munich-vornamen register; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); dane.gov.pl — PESEL living persons (names); Guyana — Official List of Electors July 2025. 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)

Irenäus is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • a separate name2 spellings in the group

    Also written Irenaus

1 further group 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.

Notable people with this name(measured from records)

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 6 sources across 3 countries.

Official registers attesting Irenäus
CountryRegisterYearCountRank
PL Polanddane.gov.pl — PESEL living persons (names)—8#11,156
PL Polanddane.gov.pl — PESEL given names (first + second name position, 2026-01-20)20268#12,365
DE GermanyStadt München Open Data — Vornamen von Nulljährigen2020——

Reference works 1

  • 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 Irenäus mean?
Recorded meaning: in Deutschland seit dem 17.
Is Irenäus a male or female name?
Irenäus 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.
In which country does Irenäus have the most bearers?
Mondonomo estimates about 159 people named Irenaeus in Nigeria, more than in any other country we hold.
How common is the name Irenäus?
In Poland, the national register counted 8 people named Irenäus in 2026, about 1 in 4.8 million residents.

What do you want to know about Irenäus?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/iren%C3%A4us

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, “Irenäus”. Data snapshot 2026-10-10.

See how Irenäus parses inside a full name →