| Type: | Bishop |
| Honorific-Prefix: | His Excellency |
| Irineu Sílvio Wilges | |
| Bishop Emertus of Cachoeira do Sul | |
| Archdiocese: | Santa Maria |
| Appointed: | 14 June 2000 |
| Term End: | 28 December 2011 |
| Predecessor: | Ângelo Domingos Salvador |
| Successor: | Remídio José Bohn |
| Ordination: | 15 July 1962 |
| Ordained By: | Cristiano Frederico Portela de Araújo Pena |
| Consecration: | 12 August 2000 |
| Consecrated By: | Aloísio Leo Arlindo Lorscheider |
| Birth Date: | 1936 10, df=yes |
| Birth Place: | Pinheiral, Rio de Janeiro, Brazil |
| Death Place: | Porto Alegre, Rio Grande do Sul, Brazil |
Irineu Sílvio Wilges (3 October 1936 – 17 November 2022) was a Brazilian Roman Catholic prelate.
Wilges was born in Pinheiral and was ordained to the priesthood in 1962.[1] On 14 June 2000, Pope John Paul II appointed him as the bishop of the Roman Catholic Diocese of Cachoeira do Sul, Brazil. He was consecrated on 12 August 2000 by cardinal Aloísio Lorscheider and served as the bishop until his retirement in 2011.[2] [3]