Throughout the world, Ireneusz (Ireneusz 
, Irenaeus 
, Ириней 
) is a common male first name. The first name Ireneusz is characteristic of Poland, where it is quite a common boy's name, Ireland, where it is quite a rare male name, and Germany, where it is a rare boy's name. Not in comparison with a country's population, this name is the most popular in Poland, Germany, and the United Kingdom. More frequently, Ireneusz is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ireneusz | Poland, United Kingdom, Ireland, United States, Germany |
| Irenaeus | United Kingdom, Nigeria, United States, Germany, Austria |
| Ириней | Kazakhstan, Bulgaria, Belarus, Russia, Ukraine |
| Иренеуш | Russia, Belarus |
Ireneusz is also a name for the fictitious and mythical characters: Ireneusz Skalski and Иринеј , character in Deacon of the Church of the Mother of God.
|
ireneusz kleofas ogiński (1808-1863), FR (b. 1808) |
|
| ireneusz litawor-chreptowicz (b. 1775) |
|
|
|
ireneusz załuski LT (b. 1835) |
|
|
ireneusz wierzejewski Polish officer, PL (b. 1881) |
|
|
ireneusz branowski Major of the Polish Army (1892-1936), PL (b. 1892) |
|
|
ireneusz roszkowski Polish gynecologist, precursor of prenatal medicine, PL (b. 1909) |
|
| ireneusz kukliński Polish officer (b. 1880) |
|
|
|
ireneusz paliński Polish weightlifter (1932-2006), PL (b. 1932) |
|
|
ireneusz pawlak Polish musicologist, PL (b. 1935) |
|
|
ireneusz iredyński Polish playwright, PL (b. 1939) |
|
|
ireneusz kocyłak Polish actor, PL (b. 1945) |
|
| ireneusz plater-zyberk Polish actor, PL (b. 1896) |
|
|
|
ireneusz krzemiński Polish sociologist, PL (b. 1949) |
|
|
ireneusz mroczkowski Polish Catholic priest and theologist, PL (b. 1949) |
|
|
ireneusz PL (b. 1939) |
|