71%RatingSave Gender Masculine Usage Ancient Greek (Latinized) Scripts Εἰρηναῖος(Ancient Greek) Meaning & History Latinized form of the Greek name Εἰρηναῖος (Eirenaios), which meant "peaceful". Saint Irenaeus was an early bishop of Lyons for whom the Greek island of Santorini is named. Related NamesFamily Tree·Details VariantsEirenaios, IreneusOther Languages & CulturesIrénée(French) Ireneo(Italian) Ireneusz, Irek(Polish) Irinei, Iriney(Russian) Ireneo(Spanish) Categories Doctors of the Universal Church, Latinizations, Orthodox saints, peace, saints