Titicaca orestias
Orestias cuvieri
- Critically endangered
- Card rarity: Legendary
- Fish

The Titicaca orestias, Lake Titicaca orestias, or Lake Titicaca flat-headed fish, also known by its native name amanto, is a likely extinct freshwater killifish from Lake Titicaca in South America. It belongs in the pupfish genus Orestias, endemic to lakes, rivers and streams in the Andean highlands. With a total length of up to 27 cm (10.6 in), it was the largest member in that genus. In the hope that an undiscovered population remains, it is listed as Critically Endangered, possibly extinct by the IUCN. Despite its common name, it is not the only Orestias from Lake Titicaca.
Classification
- Class
- Actinopterygii
- Order
- Cyprinodontiformes
- Family
- Cyprinodontidae
- Genus
- Orestias