El Rosario is a municipality in the northeastren pairt o the island o Tenerife in the Province o Santa Cruz de Tenerife, on the Canary Islands, Spain. The seat o the municipality is the toun La Esperanza, in the muntainous interior o the island. The municipality includes the coastal toun Radazul. The TF-1 motorwey passes throu the soothren pairt o the municipality.
The population is 15,542 (2013), its aurie is 39.43 km².