| Río Jacaguas | |
| Pushpin Map: | Puerto Rico |
| Pushpin Map Caption: | Location of mouth |
| Length: | 24.68miles[1] |
| Source1 Elevation: | 2099feet |
| Mouth Elevation: | 0feet |
| Discharge1 Avg: | 37000cuft/s[2] |
| Basin Size: | 59.85sqmi[3] |
| River System: | Jacaguas River |
| Tributaries Left: | Quebrada Jaguayes Quebrada Chorrera |
| Tributaries Right: | Quebrada Guanabana |
Río Jacaguas is a river shared between the municipalities of Ponce and Juana Díaz in Puerto Rico. It flows from north to south, draining into the Caribbean Sea east of the city of Ponce. One of the 14 rivers in the municipality of Ponce, it is also the longest, at 39.72km (24.68miles). The river has a discharge of 37,000 ft3/second, making it also Ponce's most affluent river.[4]
Jacaguas has its origin in the municipality of Villalba, Puerto Rico, in the boundary between barrio Vacas and barrio Hato Puerco Arriba,[5] at an altitude of approximately 2099feet above sea level. It crosses the municipalities of Villalba and Juana Díaz, forming the Guayabal Lake, before approaching the municipality of Ponce where it becomes the boundary between Ponce and Juana Díaz most of its trajectory. From there it empties into the Caribbean Sea.