>
Across the world, Irenaeus (Ireneusz , Irenaeus , Ириней ) is a common boy's forename. The first name Irenaeus is characteristic of Poland, where it is quite a common male name, Ireland, where it is quite a rare boy's name, and Germany, where it is a rare boy's name. In absolute terms, it most frequently occurs in Poland, Germany, and the United Kingdom. More frequently, Irenaeus is the last name as well as the forename.
Irenaeus is also a name for the fictitious and mythical characters: Иринеј , character in Deacon of the Church of the Mother of God and Ireneusz Skalski .