The Galápagos fur seal (Arctocephalus galapagoensis) breeds on the Galápagos Islands in the eastern Pacific, west of mainland Ecuador.

Galápagos fur seals are the smallest of otariids. They have a grayish brown fur coat. The adult males of the species average 1.5 m (4 ft 11 in) in length and 64 kg (140 lb) in mass. The females average 1.2 m (3 ft 11 in) in length and 28 kg (62 lb) in mass. They spend more time out of the water than almost any other seal. On average, 70% of their time is spent on land. Most seal species spend 50% of their time on land and 50% in the water.

The Galápagos fur seal is endemic to the Galápagos Islands; it cannot be found anywhere else in the world. The Galápagos are a chain of islands found approximately 972 km (604 mi) west of Ecuador. The seals live on the rocky shores of the islands which tend to be on the west side of the islands, leaving only to feed. These seals do not migrate and remain near the islands their entire lives, which averages at about 20 years.