| Babocomari River | |
| Source1 Location: | Sonoita Basin |
| Mouth Location: | San Pedro River, Fairbank, Arizona |
| Mouth Coordinates: | 31.7222°N -110.1939°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | Location |
| Subdivision Name2: | Santa Cruz and Cochise Counties, Arizona |
| Length: | 25miles |
| Mouth Elevation: | 3825feet |
| River System: | Colorado River |
The Babocomari River is a major tributary of the upper San Pedro River in southeastern Arizona. The river begins in the Sonoita Basin near the community of Elgin, Arizona, and flows eastward for approximately before merging with the San Pedro, just south of the Fairbank Historic Townsite in the San Pedro Riparian National Conservation Area. The Babocomari drains an area of about, including the northern Huachuca Mountains, the northwestern Canelo Hills, and the southern Mustang Mountains, and is one of three drainages of the Sonoita Basin, the other two being Sonoita Creek and Cienega Creek. Vegetation consists of riparian trees along the main channel and small marshy grasslands.[1]