The Juan Fernández trevally Pseudocaranx chilensis is a carangid found in the coastal waters of the southeastern Pacific oceanic islands, west of mainland Chile. This species is considered endemic to the Juan Fernández and Desventuradas Islands; however, this study presents a new record of this species off Chañaral Island, on the north-central coast of Chile, an extension of 850 km to the east of its usual distribution range. The underwater sighting of several vagrant individuals might result from a migration of fish larvae from the Juan Fernández Islands.