Laticauda colubrina, commonly known as the banded sea krait, colubrine sea krait, or yellow-lipped sea krait, is a species of venomous sea snake found in tropical Indo-Pacific oceanic waters. The snake has distinctive black stripes and a yellow snout, with a paddle-like tail for use in swimming.

It spends much of its time underwater in order to hunt, but returns to land to digest, rest, and reproduce. It has very potent neurotoxic venom which it uses to prey on eels and small fish. Because of their affinity to land, banded sea kraits often encounter humans, but the snakes are not aggressive and only attack in self-defense.