Lobos de Tierra is a Peruvian island situated 19 km from the mainland close to the Illescas Peninsula and the boundary between the departments of Piura and Lambayeque regions.

It is part of Peru’s Guano Islands, Islets, and Capes National Reserve System.

In 1863 the island was estimated to have guano deposits of almost 7 million metric tons,[2] which were then exploited without any control.

It owes its name to its proximity to the coast and the presence of eared seals ("lobo marino" in Spanish, or "sea wolves").

[3] The island is home to birds such as the kelp gulls,[4] boobies[5][6] and cormorants[5] who were the primary producers during the heyday of guano collecting.