| Kabacan River | |
| Pushpin Map: | Mindanao#Philippines |
| Subdivision Type1: | Country |
| Subdivision Name1: | Philippines |
| Subdivision Type2: | Region |
| Subdivision Name2: | Soccsksargen |
| Subdivision Type3: | Province |
| Subdivision Name3: | Cotabato |
| Length: | 80km (50miles) |
| Source1: | Mount Apo |
| Source1 Location: | Cotabato |
| Source1 Elevation: | 1552m (5,092feet) |
| Mouth: | Pulangi River |
| Mouth Location: | Kayaga, Kabacan, Cotabato |
| Progression: | Kabacan–Pulangi–Mindanao |
| Tributaries Left: | Bantac River |
The Kabacan River is a river in the province of Cotabato in the Philippines. It is a tributary of the Pulangi River, discharging at Kayaga, Kabacan, Cotabato.
Flooding occurs during heavy rainfall, thunderstorms and typhoon season.