| Santa Maria River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Philippines |
| Subdivision Type2: | Region |
| Subdivision Name2: | Central Luzon |
| Subdivision Type3: | Province |
| Subdivision Name3: | Bulacan |
| Subdivision Type4: | City/municipality |
| Length: | 31km (19miles) |
| Source1: | Sierra Madre mountains |
| Source1 Location: | Norzagaray, Bulacan |
| Mouth Location: | Bulakan |
| Mouth Coordinates: | 14.7658°N 120.9148°W |
| Mouth Elevation: | 0m (00feet) |
| Tributaries Left: | Caypombo River (Pulo River), Santa Clara River |
The Santa Maria River (Filipino; Pilipino: Ilog Santa Maria) is a river in the province of Bulacan, Philippines. Stretching for 31km (19miles),[1] it bisects the municipalities of Santa Maria, Bocaue (in baranggay Lolomboy)[2] and the city of San Jose del Monte. Its major tributaries are the Caypombo River and an unnamed river in San Jose del Monte.