Tiger sharks are opportunistic feeders and will eat almost anything they can catch and swallow. Their diet includes bony fish, smaller sharks, rays, sea turtles, birds, sea snakes, crustaceans, mollusks, marine mammals, and carrion.
They are sometimes called "garbage disposals" because they have been known to ingest trash. They are also one of the few shark species capable of eating sea turtles, thanks to their powerful jaws and teeth. As apex predators, their varied diet helps them dominate their ecosystems, though prey availability varies by region.