BoyAncient Greek origin4 syllables
Irenaeus
Meaning: “peace”
About the name Irenaeus
Irenaeus is a boy name with Ancient Greek roots, meaning “peace”.
It has a unique feel. In 2025, Irenaeus ranked #12747 for boys in the US, with 5 babies given the name. Its peak year since 1940 was 2025. Since 2000, 100% of US babies named Irenaeus were boys.
Etymology
From Ancient Greek, meaning “peace”.
Name meaning adapted from Wiktionary (“Irenaeus”) by Wiktionary contributors, CC BY-SA 4.0.
- US rank 2025
- #12747
- In 2015
- Not ranked
- Babies in 2025
- 5
Popularity of Irenaeus, 1940–2025
Latest SSA data: 2025.
Popularity data: U.S. Social Security Administration national baby names (public domain; names given to at least 5 babies of one sex per year).
Names similar to Irenaeus
Name meanings marked or linked “Wiktionary” are adapted from Wiktionary by Wiktionary contributors, CC BY-SA 4.0; each name page links its source entry.