| Tya | |
| Pushpin Map: | Trøndelag#Norway |
| Pushpin Map Caption: | Location of the river |
| Subdivision Type1: | Country |
| Subdivision Name1: | Norway |
| Subdivision Type2: | County |
| Subdivision Name2: | Trøndelag |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Tydal |
| Length: | 16.3km (10.1miles) |
| Source1: | Stuggusjøen |
| Source1 Location: | Stugudalen, Tydal, Norway |
| Source1 Coordinates: | 62.9387°N 11.8224°W |
| Mouth: | Nea River |
| Mouth Location: | Ås, Tydal, Norway |
| Mouth Coordinates: | 63.0414°N 11.6629°W |
| River System: | Nea-Nidelvvassdraget |
The Tya is a river located in the municipality of Tydal in Trøndelag county, Norway. The 16.3km (10.1miles) long river flows from the lake Stuggusjøen near the village of Stugudalen and flows north to the village of Ås where it joins the Nea River. It is part of the Nea-Nidelvvassdraget river system. The river has a watershed of about . The river flows at an average rate of .[1]