| Triongu | |
| Settlement Type: | Parish |
| Subdivision Type: | Country |
| Subdivision Name: | Spain |
| Subdivision Type1: | Autonomous community |
| Subdivision Name1: | Asturias |
| Subdivision Type2: | Province |
| Subdivision Name2: | Asturias |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Cangas de Onís |
| Pushpin Map: | Spain |
| Coordinates: | 43.4°N -5.1333°W |
Triongu is one of eleven parishes (administrative divisions) in Cangas de Onís, a municipality within the province and autonomous community of Asturias, by northern Spain's Picos de Europa mountains.
In 942, King Ramiro II of León donated to the bishop Vermudo of Oviedo the churches of San Vicente and Santa Eulalia of Triongu. This was written in a document conserved in the Archive of the Cathedral of Oviedo.