| Toyo River | |
| Name Other: | 豊川 |
| Subdivision Type1: | Country |
| Subdivision Name1: | Japan |
| Subdivision Type2: | State |
| Subdivision Name2: | Honshu |
| Subdivision Type3: | Region |
| Subdivision Name3: | Aichi |
| Length: | 77km (48miles) |
| Source1: | Mount Takanosu (Kitashitara District, Aichi) |
| Source1 Elevation: | 1152m (3,780feet) |
| Mouth: | Mikawa Bay |
| Mouth Coordinates: | 34.7753°N 137.3205°W |
| Basin Size: | 724km2 |
The Toyo River is a river in Aichi Prefecture, Japan. It flows into the Pacific Ocean.[1]