Irineu
Irineu is the Portuguese version of the male given name Irenaeus.
Notable people with the name include:
- Irineu Esteve Altimiras, Andorran cross-country skier
- Irineu Calixto Couto, Brazilian footballer
- Irineu Gassen, Brazilian bishop
- Irineu Evangelista de Sousa, Brazilian businessman and politician
- Victor Irineu de Souza, Brazilian footballer
- Irineu Sílvio Wilges, Brazilian bishop