The first name Irenaeus
A boy’s name from Greek meaning “peace”.
3 syllables Male
Meaning and origin
Greek origin
Irenaeus means “peace” in Greek.
From Latin Īrēnaeus, from Ancient Greek Εἰρηναῖος (Eirēnaîos), from εἰρήνη (eirḗnē, “peace”).
More names that mean peace.
From Wiktionary (CC BY-SA 4.0).
Popularity in the United States
Babies named Irenaeus at birth, 1880–2025
In 2025, 5 boys born in the United States were named Irenaeus, the 12,747th most popular boys’ name that year.
5
babies named Irenaeus since 1880
#12,747
rank in 2025
2025
peak year
US Social Security Administration, from applications for a Social Security card. A name is only published for a year when at least five babies were given it, so quieter years show as zero.
Irenaeus in other languages
Equivalent forms of the name, from Wiktionary
إِيرِينَاوُس
ʔīrīnāwus
Arabic
Ирине́й
Irinéj
Bulgarian
Ireneu
Catalan
依勒內 /依勒内
Yīlènèi
Chinese
Irénée
French
Irenäus
German
Ειρηναίος
Eirinaíos
Greek
Ireneo
Italian
Ireneusz
Polish
Irineu
Portuguese
Ирине́й
Irinéj
Russian
Ireneo
Spanish
Spelled Irenaeus in Latin too.
Nicknames and spellings
Other spellings and forms
- Irenæus
More Greek boys’ names
Questions
- What does the name Irenaeus mean?
- Irenaeus means “peace” in Greek.
- What is the origin of the name Irenaeus?
- From Latin Īrēnaeus, from Ancient Greek Εἰρηναῖος (Eirēnaîos), from εἰρήνη (eirḗnē, “peace”).
- When was Irenaeus most popular?
- 2025 in the United States, when 5 babies were named Irenaeus, its highest rank at 12,747th.
- What are other spellings of Irenaeus?
- Irenæus.