* Sharks: Some sharks, such as the dogfish and the hammerhead, prey on seahorses.
* Stingrays: Stingrays use their sharp tails to impale and eat seahorses.
* Large fish: Some large fish, such as tuna and swordfish, will also eat seahorses.
* Seabirds: Some seabirds, such as gulls and terns, will eat seahorses.
* Crabs: Some crabs, such as the blue crab and the hermit crab, will eat seahorses.
* Shrimp: Some shrimp, such as the mantis shrimp and the pistol shrimp, will eat seahorses.
* Squid: Some squid, such as the giant squid and the Humboldt squid, will eat seahorses.
* Octopuses: Some octopuses, such as the giant octopus and the common octopus, will eat seahorses.