The Juan Fernandez tit-tyrant is an endangered species of bird in the family Tyrannidae, the tyrant flycatchers. It is endemic to the Juan Fernández Islands in the South Pacific Ocean off of Chile.

Alejandro Selkirk Island, previously known as Más Afuera, is the largest and most westerly island in the Juan Fernández Archipelago of the Valparaíso Region of Chile. The island was renamed after the