Fistularia corneta, commonly known as the Pacific cornetfish or the deepwater cornetfish, is a marine fish in the family Fistulariidae.

It is endemic to the eastern Pacific Ocean, being found from California to Peru, including many offshore islands.

[1] Adult fish are found deeper than 30 metres (98 ft) and have been observed to grow longer than 1 metre (3.3 ft), but are more commonly around 20 centimetres (7.9 in) long.

[2][3] F. corneta feeds on small fishes, and itself is most commonly used by humans as processed fishmeal, which can be marketed as fresh, salted or dried.

This Syngnathiformes-related article is a stub.