Ercilla
Ercilla is a proper name from the Basque Country and stands for
- Alonso de Ercilla y Zúñiga (1533–1594), Spanish poet and founder of Chilean literature
- a municipality in the province of Malleco in the IX. Region (Araucania) in central southern Chile (named after the poet of the same name), see Ercilla (Chile)
- a genus of climbing plants found in Chile and Peru with two species (named after the poet of the same name), see Ercilla (genus)