Irenaeus (disambiguation) explained

Saint Irenaeus of Lugdunum (Lyons) was a Catholic bishop, theologian and early church father.

Irenaeus or similar may also refer to:

Irenaeus (Bekish) (1892–1981), primate of the Orthodox Church in America
Irenaeus (grammarian), a first-century Greek grammarian from Alexandria
Irenaeus (Susemihl) (1919–1999), metropolitan bishop of Vienna and Austria of the Russian Orthodox Church and Soviet spy
Irenaeus of Sirmium (died 304), bishop and martyr
Irenäus Eibl-Eibesfeldt (1928–2018), Austrian ethnologist
Patriarch Irenaios (Irenaios Skopelitis) (born 1939), patriarch of the Eastern Orthodox Patriarchate of Jerusalem

See also